Tag Archives: Erwin Record

Broad-winged hawk is region’s migratory raptor

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COURTNEY CELLEY/USFWS • A broad-winged hawk perches with a snake in its talons.

I’ve been seeing a few birds that qualify as fall migrants, but there have been some other birds in the mix, such as red-shouldered hawk.

In the last five years or so, red-shouldered hawk has become a year-round resident. But I hadn’t seen or heard one of these hawk since early summer, so I’m not sure if this individual was a resident or simply one passing through during this time of flux for our feathered friends.

Migration by its nature stirs up birds, which may pop into some unexpected places for a pit-stop on their travel route.

Other birds I’ve seen or heard recently include broad-winged hawk, Eastern wood-pewee, Northern waterthrush, hooded warbler, gray catbird, blue jay, American goldfinch, American crow, common raven, great blue heron and Eastern phoebe, as well as ruby-throated hummingbird and three woodpecker species: Downy, pileated and red-bellied.

The hawks, however, got my attention. The broad-winged hawk, known scientifically as Buteo platypterus, thrills onlookers every September by staging phenomenal migratory flights that can include hundreds or thousands of individual birds. The term “platypterus” translates from Greek as “wide winged.”

Outside of birding circles, however, the broad-winged hawk is not nearly as widely known for its migratory feats as, for example, the monarch butterfly or Eastern North America’s ruby-throated hummingbird. When time to migrate, these hawks form large flocks, which also include other raptor species. “Hawk watches” are held at some famous peaks. A Mendota Hawk Watch is conducted ever fall on Clinch Mountain near an abandoned fire tower close to Mendota, Virginia.

Larry McDaniel with the Bristol Bird Club reported that the watch this season has been productive.

“The Mendota Hawk Watch is going strong with good coverage and lots of raptors,” he wrote in a Facebook post on Sept. 19. “There have already been over 3.600 broad-wings reported and we are just now getting into the statistical peak. The show will be over by late September, so get up there while the birds are still flying.”

Other famous “hawk watch” locations in the eastern United States include Whitefish Point in Michigan and Hawk Ridge, Minnesota. Closer to home, I’ve seen sizeable flocks, or kettles, of broad-winged hawks, on occasion in the company of other raptors, on Holston Mountain and Roan Mountain.

The genus Buteo includes the broad-winged hawk’s larger kin, including red-tailed hawk, rough-legged hawk, red-shouldered hawk and ferruginous hawk. Outside the United States, raptors in the buteo genus are often known as “buzzards.” When the first European colonists came to the New World, they applied the term buzzard to both types of native vultures as well as the large raptors like Swainson’s hawk that reminded them of the ones back in Europe such as the common buzzard.

Some of the buteo species have adapted to life on islands, including the Galapagos hawk and the Hawaiian hawk. There’s an endangered sub-species of broad-winged hawk known as the Puerto Rican broad-winged hawk that resides in forests on the island of Puerto Rico.

Some of these hawks have quite descriptive names, including the white-throated hawk, gray-lined hawk, zone-tailed hawk and short-tailed hawk, as well as long-legged buzzard, jackal buzzard and red-necked buzzard.

The broad-winged hawk, like all of its kin, is a predatory bird. These medium-sized hawks prey primarily on rodents, amphibians and insects, but they will also capture and eat snakes. They take some time to prepare prey after making a capture. In the case of snakes and frogs, these hawks “skin” their victims.

Many of our hawks are resident throughout the year, but the broad-winged hawk only spends the spring and summer. Look for them now. They won’t return until late April and early May in 2026.

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Bryan Stevens has written about birds, birders and birding since 1995. Share a sighting, ask a question or make a comment by emailing him at ahoodedwarbler@aol.com.

Birds with different spring and fall looks challenge birders

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Photo by Bryan Stevens • A young male Rose-breasted Grosbeak visits a feeder in September of 2013. Young males resemble females but show a splash of orange on the breast that will be replaced the following spring by the familiar rosy-red patch.

My favorite season is fall. I’m always excited when birds return in the spring, but I have better luck observing fall migrants.

There’s a trade-off, however. Many birds don’t look their best by the time autumn migration rolls around. Take the male indigo bunting, for instance. This species is the only solid blue bird in the eastern United States, but it’s all an illusion — literally a trick of the light.

The indigo bunting’s feathers are not really blue; the male’s brilliant azure plumage is caused by the process of diffraction of light around the structure of the bird’s feathers. This process scatters all but the blue light, and the resulting color shifts from black to blue to turquoise as the angle of reflected light changes. In bright light, it can even look unnaturally vivid blue. In poor light, however, an indigo bunting male can appear black. Fortunately, indigo buntings have both a characteristic body shape and song, so even if the birds are not seen in their best light, they can still be recognized.

Photo by Bryan Stevens • Male indigo buntings look their best when they arrive each spring. They most over the summer, giving fall males a blotchy plumage of brown with some hints of blue remaining..

For such a bright blue bird, indigo buntings are not easy to detect. When that plumage gets mottled with brown patches in fall, these birds blend even better with their backgrounds.

The indigo bunting belongs to a genus of birds known as Passerina, which is included the family Cardinalidae, which includes birds like Northern cardinal and rose-breasted grosbeak. They are often lumped into a group known as North American buntings, although they are not closely related to such birds as snow bunting and lark bunting. The latter is even recognized as the official state bird for Colorado, a unique honor for this group of birds. The other members of the Passerina genus include lazuli bunting, varied bunting, painted bunting, rose-bellied bunting, orange-breasted bunting and blue grosbeak.

Indigo buntings linger into early October, but they also molt feathers and take on a less showy look in late summer and fall. Even the males can end up looking rather shabby compared to a spring counterpart in electric blue plumage.

The rose-breasted grosbeak, or at least adult males of the species, are birds that can take one’s breath away when observed in spring when the birds first return from their tropical wintering grounds. By fall, however, even adult males have lost some of the crisp black-and-white plumage and the rosy coloration on the breast often fades to dull orange.

In fall, the rose-breasted grosbeak migrates south to a winter range that spans central Mexico, Central America and northern South America. As they depart, many will make stops in yards with feeders to partake of offerings of sunflower seeds. So, if you didn’t get to see these showy birds in the spring, local bird enthusiasts get another chance to see them in this month and into October.

Photo by Bryan Stevens • Some of the Rose-breasted Grosbeaks migrating through this fall still retain some of their rosy color.

The male rose-breasted grosbeak gives this species it name. Males are the epitome of the birds that make their home for part of the year in the American tropics. The contrasting black and white plumage is emphasized by a triangular slash of rosy-red color on the breast. Put all those elements together and the male rose-breasted grosbeak is not a bird that would be mistaken for any other.

The female grosbeak, however, doesn’t stand out in the same way. She is much less colorful than the male. With her brown and white plumage, she is often mistaken for a large sparrow or finch. At this time of year, however, all rose-breasted grosbeaks: Adult males, adult females and young birds born this past summer can look dull. The best way to identify them is by focusing on the beak. That large, sturdy beak gives this species the other part of its name. “Gros” is a German word for big, so the name basically means “big beak.”

A fall appearance at odds with how a bird looks in the spring is also true of the scarlet tanager. The vibrant red and black spring males may look yellow or greenish-yellow once the acquire their fall and winter plumage. It’s not all that surprising. The males no longer have to impress females with their splendid coloration once the nesting season’s concluded.

The warblers, my absolute favorite family of birds, are famous for looking different in the fall. Long ago, someone coined the phrase “confusing fall warblers” since many young birds and even adult birds in fall plumage can look different than spring birds.

Photo by Bryan Stevens • The appearance of yellow-throated warblers does not change much from spring to autumn.

To identify confusing fall warblers, focus on features that remain consistent in their drabber autumn plumage, such as bill shape, leg color, tail patterns, wing bars and subtle facial markings. Learning the foraging behaviors of the various species can also be helpful.

Some of the warblers that look much different in fall includes species like magnolia warbler, Tennessee warbler, chestnut-sided warbler and Cape May warbler. Other species, such as hooded warbler, ovenbird and Northern waterthrush don’t change all that much with the seasons.

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Bryan Stevens is the managing editor of The Erwin Record. He has written about birds, birders and birding since 1995. To ask a question, make a comment or share a sighting, email him at ahoodedwarbler@aol.com.

Gray catbird’s personality veers from shyness to curiosity

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Photo by Bryan Stevens • A gray catbird perches in a mimosa tree. These birds alternate between extreme shyness and determined curiosity.

Catbirds are experts at concealing themselves from prying eyes. This birds charcoal gray plumage blends into the shadowy sections of tangles and thickets where the bird likes to hide itself.

However, even when gray catbirds are reluctant to be seen, they’re almost eager to be heard. The catbird is extremely vocal with several calls and songs in its repertoire, including the rather faithful rendering of a fussy cat’s meow that provides this bird its common name.

This is also a bird with strong curiosity. Despite its retiring nature, curiosity often wins out, as demonstrated when I had a front porch “conversation” with a catbird on a recent morning.

The named catbird came from the fact that this mimic, related to mockingbirds and thrashers, has an uncanny vocalisation that sounds just like a cat’s meow.

Photo by Bryan Stevens • A gray catbird emerged from cover long enough to have its photo taken.

I’m not particularly good at bird imitations. I can do a decent imitation of Eastern screech owls. I’ve even succeeded at getting these small owls to call back, and I’ve incited a mob of small songbirds, convinced that a “real” owl has gotten far too close for comfort.

And I can also do a passable imitation of the catbirds “meow” vocalization, which I proceeded to spontaneously do as I stood on my front porch on a cool early September morning listening to a gray catbird hidden in the dense foliage of a blooming althea, also known as a “rose of Sharon.”

Every time the catbird meowed, I meowed back. The intervals sped up. Within a short time, the bird popped into view, the better to get a look at me. That’s when something remarkable happened. Clearly still in the bird’s view, I called back. The bird called and continued to stare at me, albeit nervously, from its perch. We continued to converse, although I’m not really sure what we were discussing. I claim to be able to imitate the bird’s language, not understand it. Despite what must have been a strong urge to dive back into cover, the bird continued to remain in the open and meow back every time I returned its meow with one of my own.

Only when I moved to go back inside did the bird plunge back into dense cover. Even as I stepped back inside the house, the catbird continued to meow.

This species is part of a family related to thrushes that are known as “mimic thrushes.” Besides its surprisingly accurate rendition of a feline, the catbird has several other common vocalizations. Despite a shy nature, they’re extremely curious. Imitating their calls or simply producing a squeaky sound will usually persuade the bird to move out of cover and search for the source of the noise.

Photo by Bryan Stevens • The gray catbird resides in Northeast Tennessee April through October, although there are a few winter records for the species. Most depart in fall, choosing to spend the winter months in more hospitable locations.

Catbirds are part of the parade of the departing birds like rose-breasted grosbeaks, scarlet tanagers, Baltimore orioles and indigo buntings that will soon wing their way south for the winter.

Because they lack the brilliant plumages of some of these other summer visitors, catbirds could often go unnoticed if not for the fact they are extremely noisy.

Although the catbird is related to thrashers and mockingbirds, scientists find them just different enough to warrant placing the gray catbird in its own genus. A relative known as the black catbird, which ranges throughout the Yucatan Peninsula of Mexico as well as northern Guatemala and northern Belize, also belongs to a genus of its own. Both catbirds are classified as “mimic thrushes,” or Mimidae, of which there are about 30 species in the New World. There is also a totally unrelated family of catbirds that ranges through Australia, Asia and parts of Africa. Some of these birds include the ochre-breasted catbird, tooth-billed catbird and spotted catbird.

The gray catbird is not as an accomplished mimic as some of its relatives, such as the Northern mockingbird. Nevertheless, experts have documented that the gray catbird can produce more than 100 different sounds. Males have motivation to constantly expand their repertoire, however, as doing so increases the likelihood of attracting a mate. They imitate other birds, but some have been recorded imitating frogs and other non-avian singers.

Photo by Bryan Stevens A curious Gray Catbird peeks from dense cover. Attendees at the fall rally can look for catbirds and other species at any of the offered bird hikes.

While not generally considered a bird to visit feeders, people have succeeded in attracting catbirds to feeders designed to offer grape jelly or orange slices. Planting fruit-bearing shrubs and trees is the best means of attracting these fascinating birds to your yard and garden. It’s also best not to clear away brush and tangles from your yard if you wish to attract catbirds. These are shy birds and will avoid areas that are too open and brightly lit.

An occasional catbird lingers in the region into the winter season, but most head out for more comfortable climates by the end of October. Enjoy this entertaining bird while you can but know they’ll return without fail next spring in April and May.

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Bryan Stevens has written about birds, birding and birders since 1995. Ask a question, share a sighting or make a comment by emailing him at ahoodedwarbler@aol.com.ahoodedwarbler@aol.com

Diminutive green heron flies beneath the radar but is not uncommon

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Photo by Bryan Stevens • A green heron captures a tadpole at a pond’s edge.

Retrieving the mail from my mailbox requires a slight trek, but there’s always something to see in the few minutes it takes to complete this task six out of seven days every week.

On a recent stroll to fetch the mail I startled a green heron from the vegetation surrounding the fish pond. The heron made a startled cry and flew to a horizontal branch in a tree adjacent to the pond.

It’s been so long since I’ve seen this small wading bird up close that I’d forgotten its diminutive nature. Although the official name is green heron, I’ve almost always referred to this species as “little green heron” or simply “little green.” It’s not completely uncalled for. After all, there’s a little blue heron. As far as my research tells me, however, there is no great green heron.

Photo by Bryan Stevens • Upcoming programs in the region will focus on topics such as songbirds, raptors and the basics of beginning birdwatching. Plan to attend one or more of the programs to learn more about birds, such as this green heron.

Green herons are not restricted to coastal areas, but it was still somewhat unexpected. I’m hoping I didn’t frighten the bird too badly and it will continue to haunt the edges of the fish pond. The vegetation around the pond makes it easy for this heron to conceal itself. The pond is also a great place for the heron to forage. There’s an abundance of some of its favorite prey, including tadpoles and dragonflies.

Green herons and other wading birds are usually quite abundant in wetlands across the country in late summer. The scientific name — Butorides virescens – of this bird comes from a mix of Middle English and Ancient Greek and roughly translates as “greenish bittern.”

There are only two other species in the genus Butorides — the lava heron, which occurs on some of the Galapagos Islands of Ecuador, and the striated heron, which is found in wetlands throughout the Old World tropics from West Africa to Japan and Australia. This heron, which is also known as the mangrove heron, also occurs in South America.

The green in the bird’s plumage appears as a dark green cap, as well as a greenish back and wings. Adult birds also have chestnut-colored neck feathers and a line of white feathers along the throat and belly. These herons often assume a hunched position, making them look smaller than they actually are.

It’s been a good summer for wading birds. In addition to the green heron, a great blue heron has been lurking in the creekand at the fish pond. Much larger than the green heron, it’s not as easy for the great blue heron to escape notice.

Other locations to look for both these herons are at the pond at Erwin Fishery Park. You’ll also want to keep alert when walking along the linear trail in Erwin. This is the time of year when interesting herons or egrets are not all that scarce.

Farm ponds in the countryside around Jonesborough, as well as wetland habitat around the town’s Persimmon Ridge Park, are also good places to look for green herons. The wetlands at Sugar Hollow Park in Bristol, Virginia, is another dependable location for seeing this small heron. Most green herons will depart in late September and early October. This small heron retreats from the United States during the winter season but returns each spring in April and May.

Photo by Bryan Stevens • A green heron finesses a captured tadpole in its bill.

The green heron’s range during the nesting season includes Canada and much of the United States. Green herons will sometimes form loose nesting colonies, but at other times a pair will choose a secluded location as a nest site. The female will usually lay from three to five eggs. Snakes, raccoons and other birds such as crows and grackles are potential threats to eggs.

For the most part, the population migrates to Central and South America for the winter months. A few herons — great blue heron and black-crowned night heron — remain in the region throughout the year, even enduring the cold winter months in Northeast Tennessee, Southwest Virginia and Western North Carolina.

Green herons are probably more common than we realize. They are skilled at blending with their surroundings, but sharp eyes can find these herons around almost any body of water, whether it is pond, marsh, river, creek or lake.

Keep looking for green herons and their larger kin for the next few months. To share a sighting, ask a question or make a comment, send me an email at ahoodedwarbler@aol.com.

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Bryan Stevens is the managing editor of The Erwin Record. He has written about birds, birding and birders since 1995.

Photo by Bryan Stevens • A green heron hunches next to a pond.

 

Birds boast phenomenal knack for long-distance travel

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Hans Toom/Pixabay • The blackpoll warbler has one of the more difficult and lengthy migrations of the family of warblers.

The phenomenon of migration isn’t exclusive to the neotropical migrants of the New World. Birds in other parts of the world migrate, too. Waterfowl, shorebirds and raptors are among some of the families of birds that stage impressive migrations.

Of course, I spent most of my birding within Tennessee, particularly in the Northeast Tennessee region. Since the Volunteer State has no access to the sea, it is sometimes amazing how many birds affiliated with coastal areas can be found if you know when and where to look. Fall’s a good time to scan lakeshores, river banks and the edges of farm ponds for migrating shorebirds and wading birds.

I discussed last week some of the species I hope to see this fall. Every time I see some of these migrants I am impressed by what a phenomenal feat each and every single one of these birds represents. As my mother is fond of asking: “How do they do it?”

For such relatively small creatures, many if our birds are world-class travelers. Here are a few profiles of some of these incredible migrants.

Photo by U.S. Fish & Wildlife Service/Kirk Rogers • The Arctic tern is a world champion among migrating birds.

 

One good tern deserves another

The Arctic tern, for example, truly takes migration to extremes. This small seabird travels each year from its Arctic nesting grounds to the Antarctic region, where it spends the winter months. Put into terms of mileage, the Arctic tern can travel about 50,000 miles in a single year. For a bird with a body length of about 15 inches and a wingspan of about 28 inches, this incredible migration is an astonishing feat. These statistics permit the Arctic tern to easily lay claim to the title of champion migrant among our feathered friends. According to the website for National Geographic, Arctic terns face a serious threat from climate change. In a profile on the tern at its website, National Geographic warns that Arctic terns are projected to lose 20 to 50 percent of their habitat due to the temperature changes linked to climate change. They also face loss of habitat due to encroachment by human activities such as oil drilling.

Photo by Bryan Stevens • Despite a perceived disadvantage of size, ruby-throated hummingbirds are quite capable of thriving in a giant world.

Size matters less than we think

The ruby-throated hummingbird makes an impressive migration each year. It’s even more awesome when one considers the diminutive size of these small travelers. Just to reach the United States, these tiny birds undertake a strenuous journey. They leave their wintering grounds in Central America to return to the United States and Canada for the nesting season. Most of these tiny birds, which are barely four inches long, make a non-stop flight of more than 500 miles across the Gulf of Mexico. The journey can take almost an entire day. With the end of summer, the entire population of ruby-throated hummingbirds, increased by a new generation of young birds, makes the Gulf crossing for a second time in a year to return to the American tropics for the winter months.

Photo by U.S. Fish & Wildlife Service/Steve Maslowski The bar-tailed godwit stages migrations that can take nine days of non-stop flight spanning nearly 6,000 miles.

 

Godwits, by Jove!

Shorebirds, which in North America can consist of birds ranging from turnstones and sandpipers to willets and avocets, are champion migrants. For instance, the bar-tailed godwit makes an impressive non-stop migratory flight. This shorebird nests in the United States only in parts of remote Alaska, but this godwit also ranges into Scandinavia and northern Asia. Some of these godwits make a nine-day, non-stop migratory flight that takes them from New Zealand to the Yellow Sea of China and beyond, a distance of almost 6,000 miles each way. Needless to say, since the godwits make no stops along the way, they must also go without food for the duration of their journey. The female godwit is larger than the male, but she still weighs only 12 ounces. The long-billed, long-legged bird is about 17 inches in length from the tip of the bill to its tail. That a creature so small can make such a distant, arduous trip and be the none the worse for wear is truly inspiring.

Bryan Stevens • A broad-winged hawk perches in a woodland in the Southern Appalachians.

A fine kettle of hawks

Many North American raptors migrate, but the broad-winged hawk dislikes the lonely aspects of solitary travel. Instead, these hawks form large flocks, known as kettles, during migration. In autumn the majority of these raptors travel past human-staffed hawk migration observation points, which are dubbed “hawk watches,” during a brief and concentrated period of only a few weeks. Observing the phenomenon locally is possible at the Mendota Fire Tower Hawk Watch site atop Clinch Mountain at an abandoned fire tower near Mendota, Virginia. Broad-winged hawks are part of the family Accipitridae, which includes 224 species of hawks, eagles, vultures and other birds of prey. Broad-winged hawks are truly long-distance migrants. Many hawks passing over Mendota may end their migration as far south as Brazil. These hawks travel in flocks that can consist of hundreds or thousands of individuals. The birds conserve energy by soaring on thermals and mountain updrafts.

Jean Potter • Warblers, such as this male black-throated blue warbler, migrate into North America each spring to nest and retreat each fall for conditions farther south during the winter.

Traveling in stages

Most of the warblers that nest in North America retreat to Central and South America during the winter months. Few warblers, however, make as great a journey as the blackpoll warbler. Instead of migrating over land, this five-inch-long warbler undertakes a two-stage migration. The first half of the migration is a non-stop flight of about 1,500 miles. Every fall, these tiny birds fly over the ocean during this part of their migration, departing from Canada or the northern United States and not stopping until they reach various locations in the Caribbean. There they will spend some time recovering from the exhausting first half of their journey before they continue their way to such South American countries as Colombia and Venezuela.

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Bryan Stevens has written about birds since 1995. To share a sighting, ask a question or make a comment, email him at ahoodedwarbler@aol.com.

Looking for fall migrating birds already underway

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A male Wilson’s warbler perches in some branches. Many species of warbler migrate through the region each fall.

Summer’s waning. Just look at the calendar. We’re already approaching the midway point in August.

Birders track the transitions as one season merges into another, knowing that these are some of the best times to seek out birds. Fall migration doesn’t wait for a page to turn on a calendar. In fact, some birds are already on the move. I thought I’d devote this week’s column to some of the birds I hope to observe this fall as a mass migration draws many of our summer residents south toward warmer wintering grounds. In no particular order, here are some of the birds I’m hoping to see this autumn.

COMMON NIGHTHAWKS

The name common nighthawk is a misnomer. The species is not strictly nocturnal and it is certainly not a hawk. It’s actually a member of the nightjar family, which includes such birds as chuck-will’s-widow and whip-poor-will. The nighthawk doesn’t offer a serenade like these relatives, but it does produce a “pent” call that sounds much like an electric buzzer. It’s often the first indication of one of these birds swooping overhead. Nighthawks form impressive flocks, often numbering in the dozens or even hundreds. They are often active in evening hours, but I’ve seen large flocks of these migrating birds in mid-afternoon. August and September are the best time to look skyward to enjoy the spectacle of a large flock of swooping nighthawks as they pass overhead.

Photo by U.S. Fish and Wildlife Service
A Common Nighthawk finds a perch for a brief rest.

 

I didn’t host any of these colorful birds this spring, so I hope to get another opportunity this fall. The males in their vibrant black-and-white plumage and namesake breast patch of rosy-red feathers are slightly less colorful in the fall. I’ve actually had better luck in autumn hosting these birds at feeders. They love sunflower seeds, so keep your feeders stocked with their favorite foods to increase your chances. Females and young birds look different than adult males, but the heavy beak (the word “gros” is German for large) is a good indicator of their identity. Bird banders netting this species to document information for science can testify that these birds are also capable of a nasty nip at careless fingers with that stout bill.

Bryan Stevens • A pine warbler visits a suet feeder.

WARBLERS

These birds are undeniably at their most gorgeous during spring migration, but many species of warbler retain colorful plumage into the fall season. Young birds, often in a plumage entirely different than adult birds, are responsible for the term “confusing fall warblers.” I’ll be looking for the species that are harder to locate in the spring, including bay-breasted warbler, Cape May warbler, Blackburnian warbler and Tennessee warbler. I’ll also be hoping for a rarity such as cerulean warbler or mourning warbler. I will be sad when the parade of warblers produces a palm warbler or a yellow-romped warbler. These last two species are a sure sign that fall migration’s coming to a close for another season.

Photo by Bryan Stevens
A Great Egret resting on a spit of land in a lake at Murphy Candler Park in Brookhaven, Ga.

WADING BIRDS

Late summer and early fall can also be a fantastic time for scanning rivers, lakes and farm ponds for wading birds. Hurricanes in recent years have even forcibly relocated American flamingos to Tennessee and other unlikely locations. It’s slightly more reasonable to hope for something unexpected like a wood stork or roseate spoonbill. The more likely candidates for observing in the region are great egrets, tri-colored herons and snowy egrets. It’s also a last chance to view green herons before this small species retreats to warmer locations for the coming winter.

Bryan Stevens • A hermit thrush perches on a fence.

THRUSHES

These medium-sized songbirds are typically brown in plumage, often with spotted white breasts. They’re beautiful singers in spring and summer, but they’ve often cut back on their singing by fall. Nevertheless, they form large migrating flocks that will roam autumn woodlands to rest and refuel during short breaks from migrating. Swainson’s thrush is not difficult to find in the fall. This species is named in honor of 19th century artist and ornithologist William Swainson. Like most birders, I will be hoping for the more difficult species like Bicknell’s thrush and gray-cheeked thrush. Knowing their call notes can help alert you to their presence.

There will be a dazzling diversity of our feathered friends on the move this month. The seasonal phenomenon of migration extends into September and October. Pay attention to the visitors in your yards and gardens.

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Share sightings, ask questions or make comments by emailing me at ahoodedwarbler @aol.com.

Photo by Bryan Stevens • This migrating rose-breasted grosbeaks struck a window and spent some time recovering. Later, the bird flew safely back to a row of trees.

Late summer offers interesting birding opportunities for birders

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Photo by Steven Arnold/Pixabay • A great blue heron attempts to get a handle on a snake in preparation for swallowing its serpentine prey.

A pair of Carolina wrens has taken advantage of what was meant to be the temporary storage of some boxes on the front porch to claim the interior of one of the cardboard containers as a nesting location.

In the latter days of summer, usually a lackluster period for birdwatching, there are still some interesting behaviors or actions on the part of our feathered friends to provide some points of interest.

Wrens already have a reputation for nesting in some unusual locations. My introduction to the Carolina wren took place in my childhood when a pair of these wrens nested in an old apron my grandmother used as a bag for her clothespins. Other unusual locations for wren nests that I have found over the years included the interior of a plastic shopping bag hanging from a nail in my garage and an attempt to nest in the exhaust vent for my clothes dryer. I’ve also seen them nest in hanging flower baskets.

Photo by Jean Potter • A Carolina wren creeps along a fence.

The world’s 88 species of wrens are, for the most part, the quintessential “little brown birds,” but that hasn’t kept them from acquiring some interesting and descriptive common names. Some examples include the tooth-billed wren, flutist wren, riverside wren, whiskered wren, happy wren, musician wren, timberline wren, speckle-breasted wren, white-breasted wood wren and giant wren. The last species on the list resides in Mexico and is indeed a “giant” among a family of tiny birds, reaching a length of almost nine inches and weighing all of 1.8 ounces.

I’ve also been monitoring a great blue heron lurking along the creek that flows past my home. A collapsed foot bridge (thanks to Helene) still spans the creek and provided, at least from the heron’s perspective, a means of concealment from my prying eyes when I stepped onto the front porch. The heron ducked under the bridge and slowly stepped downstream, out of sight and presumably what the bird thought would be out of mind. But I tricked the heron, stepping back inside the house and waiting for It to reappear. I stepped into view again and the heron, instead of taking flight, repeated its earlier actions, skirting beneath the bridge and wading downstream. I could probably have continued this game of peek-a-boo, but I felt that I had imposed on the heron long enough. The bird evidently desired to try its luck fishing upstream beneath a shady overhang of branches from trees growing along the creek banks. I stepped back inside, peeked out a window and watched the heron move in a slow, stately manner, but this time the bird headed up the creek.

All herons are skillful anglers, so I am confident that the bird probably managed to catch an unwary frog or fish. As the tallest heron in North America, the great blue heron boasts a diverse diet. These birds, armed with a dagger-shaped bill, excellent vision and quick reflexed, prey on rodents, amphibians, snakes, fish and even small alligators. Basically, a great blue heron will eat anything it can swallow.

Photo by Bryan Stevens • A great blue heron’s quick reflexed and dagger-like bill make it a formidable predator.

Other herons around the world with descriptive names include purple heron, white-bellied heron, black-headed heron, great-billed heron, whistling heron, pied heron and Goliath heron. The latter, as its name suggests, is a giant among herons.

There’s more to report on the birding front. Hummingbird numbers are on the rise again. After the usual summer lull, the resident ruby-throated hummingbirds have raised their profile, visiting daily at feeders as well as blooming flowers. Female hummingbirds have had time to raise their young. In fact, many of the hummingbirds visiting your yards and gardens at this time of year are probably birds born earlier in the season. In a couple of months these young birds will make their inaugural migration across the Gulf of Mexico to reach winter grounds in Central America. Until that time, hang a sugar water feeder, grab a lawn chain and enjoy the hours of no-cost entertainment provided by these feisty, flying gems.

So, although the summer doldrums do make birds scarce at times, just know that they’re still out there. In the meantime, nature offers plenty of other engaing wildlife. During the day, it’s fun to look for butterflies and dragonflies. After dark, there’s always moths and lightning bugs.

Keep in mind, it’s not always the visuals. For instance, the past couple of nights I’ve enjoyed listening to an Eastern screech-owl’s nocturnal serenade with its trembling wailing call that gives this small owl its name.

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Bryan Stevens has been writing about birds and birding since 1995. Email him at ahoodedwarbler@aol.com to share a sighting, make a comment or ask a question.

Photo by Bryan Stevens • A ruby-throated hummingbird visits a feeder for a sip of sugar water.

 

Birds make use of various strategies to attract and keep mates

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Shauna Fletche/Pixabay • Some birds, like waxwings, like to present tasty treats to their potential mates.

 

With Valentine’s Day around the corner, it’s an opportune time to see how courtship is handled among our fine feathered friends. Most birds don’t bring a box of chocolates or a bouquet of roses when they take up courtship of a prospective mate, but birds have several equivalent behaviors that they employ to attract the attentions of the opposite sex. In honor of Valentine’s Day I thought a look at some of the more unusual courtship rituals of some of our feathered friends would be appropriate.

Aerial acrobatics designed to impress

In late winter and early spring, a true oddball begins courting. The American woodcock, also known by such whimsical names as “bog sucker” and “timberdoodle,” is a shorebird that has completely abandoned the shore in favor of woodlands and fields. Beginning as early as February, American woodcocks in the region conduct nightly courtship displays, starting at dusk, that combine aerial acrobatics with an assortment of unusual acoustical flourishes. Any wet field adjacent to a wooded area could offer a stage for these evening displays, but unless you know where to look and make an effort to do so, the American woodcock might as well remain a phantom of the night.

These mating rituals provide almost the only time of the year during which this bird makes itself available for observation. It’s only during this brief window that opens into their lives that we can be assured a glimpse. Even then, our peeks at woodcocks often consist of a fuzzy twilight escapade as the bird flings itself heavenward only to make a spiraling descent a few seconds later. The displays begin with a distinct vocalization, a type of “pent,” that also has the quality of sounding like some sort of mechanical buzzer.

Once the displays conclude for the season, the birds assume nesting duties, usually unobserved by humans. The rest of the year, almost nothing but blind, sheer luck would allow a birder to stumble across an American woodcock. It’s almost as if they disappear after these spring flights of fancy.

Birds bearing gifts

Many birds present small trinkets to a prospective mate. For instance, many male penguins make a present of a stone or pebble to female penguins. There could be more than a simple bribe behind this gift. Female penguins don’t build elaborate nests. In fact, a scrape on the bare ground, perhaps encircled by a collection of pebbles, marks the extent of their nest construction. So, the perfect pebble could be the way to winning a female penguin’s heart.

The way to the heart is through the stomach

Observant birders may have witnessed a male Northern cardinal slip a female a morsel of food, such as a peanut or a shelled sunflower kernel. It’s a marked change for this bird. During the winter months, a male cardinal is more likely to chase a female away from a feeder rather than share food with her. However, as spring approaches, his behavior undergoes a change and he becomes content to feed next to a female cardinal, often slipping her some choice tidbits.

Sabine van Erp/Pixabay • Bow to your partner: Grey-crowned cranes perform an elaborate dance designed to strengthen their bond.

May I have this dance?

Many species of birds perform elaborate and ritualistic dance displays. Among birds known for tripping the light fantastic are flamingoes, cranes, grouse and grebes. Cranes are one of the oldest families of birds on earth. They’re also some of the most accomplished dancers in the animal kingdom. Pairs perform very ritualistic dances that, if the performers were human, would no doubt require the services of an accomplished choreographer. Cranes mate for life and the ritual of dancing is a way to strengthen the bonds between a mated pair. The ability to dance is, apparently, not instinctive. Young cranes must practice their dance moves, a process that can take years before they master the elaborate dance.

Dave Menke/U.S. Fish & Wildlife Service • A pair of Clark’s Grebes displays in a courtship ritual known as “rushing” or “weed dance.” Birds use a variety of strategies to attract and keep mates.

Synchronized swimming

While many birds dance to impress a mate or strengthen pair bonds, grebes perform a dance that takes place completely on the surface of the water. A pair will engage in this intricate performance, perfectly mirroring the moves of the other as they literally race across the surface of the water. These dances by grebes are also known as “rushing” or “weed dance.” It’s called as a weed dance because at the culmination of the ritual, the birds usually hold some type of aquatic plants in their bills while racing swiftly over the surface of the water. Pairs that perform well together stay together, building a nest and raising young.

Good housekeeping seal of approval

The tropical family of bowerbirds are famous for complex nests built by males and then decorated with bright and colorful objects to catch the eye of a potential mate. The nests of these birds are actually referred to as a “bower.” Usually constructed on the ground, the male will line the approachs to the bower with items such as shells, leaves, flowers, feathers, stones, berries, and even discarded garbage, including plastic scraps or bits of glass. Unusually odd items pressed into these decorative displays have included coins and spent rifle shells. This habit of male bowerbirds must rank as the ultimate in trying to impress a mate with shiny bling.

These are just a few of the inventive ways that birds go about attracting and keeping mates. Perhaps you can pick up some pointers from our feathered friends to ensure you have a great Valentine’s Day this year.

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If you have a question, wish to make a comment or share a sighting, email me at ahoodedwarbler@aol.com.

Seeing Yellow: Visit from an odd cardinal surprises local couple

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Photo by Bryan Stevens • A male Northern cardinal leads a young cardinal to food sources.

Unicoi resident Bobby Davis called me last week to share news about a sighting of a yellow cardinal. Bobby said that he and his wife, Tressa, have two bird baths and a hummingbird feeder in their yard and are in the habit of watching the comings and goings of their feathered friends. At 1 p.m. on Tuesday, Aug. 8, they noticed a yellow cardinal in the yard near some rhododendrons.

A “yellow” cardinal is simply a Northern cardinal that has inherited a rare genetic condition that causes the bird’s feathers to turn yellow instead of red.

A news item posted to a website for The Wood Thrush Shop in Nashville relates the story of a backyard feeding station in Harriman, Tennessee, in Roane County that was visited by a yellow Northern cardinal on a regular basis.

Yellow Northern cardinals have been seen in at least four different states the last 10 years but remain a rarity.

The article explained that the yellow coloration in affected cardinals is caused by a rare genetic mutation. The colors red, orange and yellow in a bird’s feathers are created with carotenoid pigments derived from the foods they eat. In the male Northern cardinal, yellow pigments from the diet apparently are converted to red by a specific enzyme. In a very rare genetic mutation, probably affecting fewer than one in a million cardinals, that enzyme is lacking, so the conversion to red doesn’t occur and the feathers are bright yellow instead.

Back in May of this year, a yellow cardinal given the name Maize was spotted in Alabama. That sighting took place less than 15 miles from a location that hosted another yellow cardinal in 2018. Was Maize a descendant of that yellow cardinal spotted six years ago?

Perhaps the yellow cardinal will stick around at Bobby and Tressa’s home. Bobby informed me that they have an ordinary pair of red cardinals that resides in their yard, but he noted that the three birds have not interacted.

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Interestingly enough, there is a bird with the actual name yellow cardinal, but it is not closely related to the Northern cardinal. This South American bird has the scientific name of Gubernatrix cristata and is a member of the tanager family.

The yellow cardinal was formally described in 1817 by the French ornithologist Louis Pierre Vieillot under the binomial name Coccothraustes cristata. The word “cristata” means crested or plumed.

This yellow cardinal ranges in Argentina, Brazil, Paraguay and Uruguay. Its natural habitats are dry savanna, temperate shrubland, subtropical or tropical moist shrubland and temperate grasslands. The yellow cardinal is threatened by habitat loss and from pet trade trappers for sale as exotic pets. Males are trapped at a higher rate than females, and the yellow cardinal is considered endangered due to the constant entrapment. If recent counts are accurate, only about 1,000 t0 2,000 of these birds still exist.

Photo by U.S. Fish & Wildlife Service
Pyrrhuloxia, also known as desert cardinal, is related to the Northern cardinal. 

The Northern Cardinal, on the other hand, is an abundant, beloved songbird. There’s additional evidence to put forward as testimony to the popularity of the Northern cardinal. It’s the official state bird of seven states: Virginia, North Carolina, West Virginia, Ohio, Illinois, Indiana and Kentucky. Only the Northern mockingbird, which represents five states as official state bird, even comes close to the Northern cardinal in this respect.

Cardinals are a widespread species, ranging westward to the Dakotas and south to the Gulf Coast and Texas. The southeastern United States was once the stronghold of the cardinal population. In the past century, however, cardinals have expanded their range into New England and Canada. These birds have even been introduced to Hawaii.

The Northern cardinal has only two close relative in the genus Cardinalis. The pyrrhuloxia, also known as the desert cardinal, ranges throughout Arizona, New Mexico and Texas, as well as in Mexico. The third relative is known as vermilion cardinal and is found in Colombia and Venezuela. This bird suffers some losses to the exotic pet trade, but its numbers have managed to remain fairly stable.

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I’ve been an active birder since the early 1990s. To share a sighting, ask a question or make a comment, email me at ahoodedwarbler@aol.com.

Tiny kinglets, gnatcatchers lead the charge among spring’s returning birds

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Photo by Pixabay • The blue-gray gnatcatcher’s diminutive size belies its defiant attitude. These birds are intensely territorial and brooks no intruders.

The ruby-crowned kinglets, which passed through last fall in October and November, have returned, retracing their migratory path for the spring season and making their presence felt at my home with their jittery call notes and songs.

Most of the more recent returning birds have been on the smaller side. In addition to ruby-crowned kinglets, which arrived on April 1, I saw and heard a tiny blue-grey gnatcatcher on March 31.

As their name suggests, kinglets are tiny birds. In fact, about the only North American birds smaller than kinglets are some of the hummingbirds. The kinglets, known outside North America as “flamecrests” or “firecrests,” belong to the family, Regulidae, and the genus, Regulus. The family and genus names are derived from a Latin word, regulus, which means “rex,” or “king.” The name was apparently inspired by the colorful crown patches, often red, orange or gold, that resemble the royal “crowns” of kings. In addition to the two North American species, four other species of kinglets can be found in North Africa, Europe and Asia.

The gnatcatcher is also one of our smaller birds. I’ve always though that blue-gray gnatcatchers resemble a shrunken mockingbird. Like quarrelsome mockingbirds, gnatcatchers are noisy, scolding songbirds.

They are also determined to protect their nesting territories at all costs and will attack much larger birds. In North America, the gnatcatcher ranks in size with birds like kinglets and hummingbirds. Despite its diminutive status, the gnatcatcher acknowledges no superiors. According to the All About Birds website, blue-gray gnatcatchers are “fiercely territorial” and use vocal displays and postures to in intimidate other birds. They may chase a rival as far as 70 feet. If all this fails to deter an intruder, a gnatcatcher will escalate to midair confrontations.

Gnatcatchers don’t hesitate to call for reinforcements when warranted. With persistent squeaking they will drum up a brigade of feisty, feathered fighters to repel intrusions by potential predators too large for a gnatcatcher and its mate to handle on their own.

Ruby-crowned Kinglet

There are two species of kinglets in North America.

Although similar in size and overall coloration, the ruby-crowned and golden-crowned kinglets are easily distinguished from each other. Side by side, the two North American kinglets are easy to identify. The golden-crowned kinglet has a striped facial pattern formed by bold black and white stripes. The ruby-crowned kinglet, on the other hand, has a bold white eye ring but no striping. The golden-crowned kinglet has an orange crown patch, while the ruby-crowned kinglet has a red crown patch that is, more often than not, kept concealed. Both sexes of the golden-crowned kinglet possess a yellow crown patch, but only the male ruby-crowned kinglet boasts a scarlet patch of feathers atop the head. Observers can expend a lot of energy trying to get a look at the crown patches, which are typically only displayed when the bird is agitated.

There are 17 species of gnatcatchers. Most of these species reside in Central and South America. Some of the other species found in North America include California gnatcatcher and black-capped gnatcatcher.

Kinglets are very active birds. If warblers can be described as energetic, the kinglets are downright frenetic in their activities. The kinglets almost never pause for long, flitting from branch to branch in trees and shrubs as they constantly flick their wings over their backs. These bursts of hyperactivity can make them difficult to observe. Although small in size, these birds more than compensate for it with a feisty spirit that does them well through the harsh winter months.

Gnatcatchers are also constantly on the move, flicking their tails and darting through the branches of trees just starting to put out new green leaves. They glean caterpillars and small insects from the undersides of leaves to help fuel their demanding metabolism.

Kinglets and gnatcatchers often join mixed flocks comprised of other species of birds, some of which are regular feeder visitors. Perhaps by observing their flock counterparts, some kinglets have learned to accept feeder fare such as suet, meal worms and chopped nuts. Away from feeders, kinglets mostly feed on a range of small insects and arachnids. Gnatcatchers are strictly eaters of insects, but while a feeder holds no attraction for them, their curious nature often makes these tiny bird quite approachable.

Normally, kinglets have a rather fleeting lifespan. These tiny birds can be considered old if they live three or four years. There are always exceptions. The oldest golden-crowned kinglet on record was six years and four months old. That individual, a male, was documented by a bird bander in 1976, according to the website All About Birds.

Likewise, gnatcatchers live brief lives. The oldest known blue-gray gnatcatcher was a male, and at least four years, two months old, when it was recaught at a banding station in Pennsylvania and rereleased, according to the All About Birds website.

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I’m still waiting for the smallest of the small to make its spring appearance. Ruby-throated hummingbirds are back, although I haven’t seen one yet. To share your first hummingbird sighting of spring, email me at ahoodedwarbler@aol.com.