Category Archives: Bird migration

Bald eagles, always impressive, not an uncommon sight in region

Leave a reply

Photo by Jean Potter • A sighting of a bald eagle in the wild is always a memorable moment for the lucky observer.

I hope everyone had a wonderful Fourth of July filled with plenty of red, white and blue. For those who ventured onto area lakes and rivers, I’m hopeful that they perhaps got to glimpse the nation’s official bird.

The bald eagle been recognized as the penultimate bird in the United States of America since the latter decades of the 18th century. I’ve seen many bald eagles in my lifetime, and a sighting of one of these magnificent raptors never disappoints. The resurgence of the once-endangered bald eagle in the lower 48 states has been a laudable accomplishment that all Americans should view with pride.

Photo by Bryan Stevens • The Endangered Species Act has helped save birds like the Bald Eagle from possible extinction.

While the recent Independence Day remains fresh in memory, I thought it might be a good time to share some interesting information on our national bird, the American bald eagle, which officially became the national emblem in 1782 when the great seal of the United States was adopted. Although Benjamin Franklin famously expressed reservations about making the bald eagle our national bird, in hindsight it’s clear that Americans made the right choice.

Despite elevating this native bird to such lofty status, we have not always been kind to the bald eagle. We allowed habitat destruction and toxic pesticides to bring this eagle to the brink of extinction. With well-deserved protection, however, the bald eagle rebounded, and the Department of Interior finally took the eagle off the threatened species list on June 28, 2007.

The bald eagle has been more frequently observed by birders in Northeast Tennessee in recent years. Some of the region’s rivers and lakes are good places to look for bald eagles, particularly in the fall and winter. A few lakes even regularly host nesting bald eagles. I’ve observed bald eagles in Tennessee, South Carolina, Florida and Virginia.

The bald eagle (Haliaeetus leucocephalus) is a member of a genus known as Haliaeetus, or sea eagles. There are seven other living species in the genus: the white-bellied sea eagle, Sanford’s sea eagle, African fish eagle, Madagascar fish eagle, Pallas’s fish eagle, white-tailed eagle and Steller’s sea eagle. The eagles are incredibly majestic birds and important symbols of the value of natural places and creatures.

Steller’s sea eagle is named for the German naturalist Georg Wilhelm Steller, who is renowned for his work as a pioneer in the natural history of Alaska. The 49th state to join the union is also the stronghold for the bald eagle. On occasion, Steller’s sea eagle has strayed into U.S. territory at Alaskan locations including the Pribilof Islands and Kodiak Island. Steller’s sea eagle is bigger than the bald eagle. In fact, it is the largest member of the Haliaeetus genus of eagles, making this bird one of the largest raptors in the entire world.

Ben Franklin wasn’t enthusiastic about the bald eagle as the national bird, but perhaps, considering he favored the Wild Turkey, it’s best we don’t eat our national bird every Thanksgiving.

The naturalist for which this eagle is named has also been honored by the naming of other creatures, including Steller’s sea lion and the now-extinct Steller’s sea cow, as well as several birds, including Steller’s jay and Steller’s eider. He was the first naturalist to describe several creatures native to Alaska, although two of these, the sea cow (a relative of the manatees) and the spectacled cormorant, are now extinct. The latter, which was the largest cormorant to ever live, is a particularly sad story. These cormorants were basically eaten into extinction, exploited as a food source by sailors and fur traders. The last spectacled cormorants perished around 1850 on a Russian island off the coast of the Kamchatka Peninsula.

Fortunately, we have proven a little more far-sighted in our treatment of the bald eagle, which was removed from the U.S. government’s list of endangered species on July 12, 1995, and transferred to the list of threatened species. In 2007, bald eagle numbers had rebounded enough in the Lower 48 states to also allow for the bald eagle to be removed from the list of threatened species.

Male and female adult bald eagles have a blackish-brown back and breast; a white head, neck and tail; and yellow feet and bill. Juvenile bald eagles are a mixture of brown and white and reach full maturity in four to five years. The female bald eagle is 35 to 37 inches in length, slightly larger than the male, with a wingspan that ranges from 72 to 90 inches. Bald eagles weigh from 10 to 14 pounds. The bald eagle’s diet consists mostly of fish, some of which are scavenged, but these large raptors are also capable of preying on everything from muskrats and ducks to rabbits and snakes. The bald eagle will also feed on carrion.

More than 240 years after it was declared an official emblem of the United States, the bald eagle has become an instantly recognizable American symbol. Long may the eagles fly.

•••

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

Smallest of birds lead the spring migration charge

4 Replies

Photo by Bryan Stevens • Welcoming back hummingbirds also involves making sure that they remain healthy and safe while spending the next six months in our yards and gardens. Readers are also invited to share the time and date of their first spring hummingbird arrivals.

 

We’ve reached the middle of March. Some of our favorite birds are on their way back to spend the warmer months with us. I’ve always been impressed that our smallest birds — ruby-throated hummingbird, blue-grey gnatcatcher and ruby-crowned kinglets — lead the charge in returning to the region after an absence of several months.

Of course, a few larger birds also tend to arrive early. The most prominent of these is probably the broad-winged hawk. These medium-sized raptors usually arrive in late March and early April.

But it’s the noisy and bold brigade of tiny birds that will capture our attention. By the end of March, the blue-grey gnatcatcher will be back, buzzing its zee-zee notes as it flits about branches budding with new green leaves. These tiny birds seem to time their arrival to coincide with the emergence of some of the first greenery of the season.

In the first days of April, ruby-throated hummingbirds will return, checking to see whether the feeders or a stand of early spring flowers are still in place.

Ruby-crowned kinglets, which make a similar passage in the fall, will transit through the region again in the spring as they make their way north to breeding grounds in spruce-fir forests in the northern regions of the United States and Canada.

These are not the only small “early birds.” Some other pint-sized songbirds that arrive in early spring include Louisiana waterthrush and yellow-throated warbler.

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 a demanding metabolism.

Photo Courtesy of Jean Potter • Blue-gray Gnatcatchers are tiny, energetic bundles of feathers.

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 birds quite approachable.

Normally, kinglets have a rather fleeting lifespan. They pay a price for their frantic, fast-paced lifestyles and 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 recaptured at a banding station in Pennsylvania and rereleased, according to the All About Birds website.

Of course, the smallest of the small is the ruby-throated hummingbird, which is officially the most diminutive of all birds found in the Eastern United States. This hummingbird is only 2.8 to 3.5 inches in length and weighs less than half an ounce.

The oldest known ruby-throated hummingbird, according to All About Birds, was a female, and at least 9 years, 2 months old when she was recaptured and rereleased in 2014 during banding operations in West Virginia.

The effort these tiny birds expend to return each year to entertain us during the warmer months is nothing short of extraordinary.

Information on the website for Perky Pet, which markets hummingbird feeders and other items for birds, describes the stages of spring migration. Once they respond to the urge to head north, most ruby-throated hummingbirds have reached Mexico’s Yucatan Peninsula by February.

The jungles of the Yucatan are rich with food and these tiny birds begin to feast on insects as they prepare for one of the toughest migrations for any bird. The majority of these hummingbirds will make a nonstop crossing of the Gulf of Mexico. This epic journey can take them 18 to 22 hours to complete. Some individuals cross the Gulf as early as February, but most of these little birds will wait to cross in March. A month or so later, the first wave of these migrants have usually reached Northeast Tennessee, Southwest Virginia and Western North Carolina.

•••

As always, I like to track the arrival dates of ruby-throated hummingbirds and appreciate readers sharing this information with me every spring. To share your first hummingbird sighting of spring, email me at ahoodedwarbler@aol.com. Please provide the date and time of the bird’s arrival. Other details, such as whether the bird is a male or female, is also appreciated.

•••

Bryan Stevens has written about birds and birding since 1995. Contact him at ahoodedwarbler@aol.com.

Projects can help welcome back spring arrivals

Leave a reply

Photo by Pixabay.com • A well-stocked feeder is a first step toward attracting more birds to your yard.

I’ve welcomed March with open arms. I know it’s too early to guarantee we’ve seen the last of winter, but I’m hopeful that the worst is behind us.

While birds don’t follow calendars, they are punctual, and thanks to their boundless energies, the grand spectacle of spring migration is already upon us. The pace will quicken in April and early May as many of our favorite summer birds, including species ranging from hummingbirds and warblers to swifts and swallows, wing their way back to the region.

Now is the time to conduct some spring tasks to make our feathered friends feel more welcome when they do return.

Place birdhouses

Many birds are cavity-nesting species, which means they utilize natural nooks and crannies as locations for nests. Nesting in a natural tree cavity or in a human-provided birdhouse offers an extra degree of security not available to birds that build traditional cup-shape nests, not to mention all the birds that simply lay their eggs right on the ground without going to much effort to construct an actual nest.

Some of the cavity-nesting species in the region that will readily accept quarters in a bird house include Carolina chickadee, Eastern bluebird, white-breasted nuthatch, tree swallow, tufted titmouse, great crested flycatcher, prothonotary warbler and house wren.

Cavity-nesting isn’t restricted to songbirds. Wood ducks, Eastern screech-owls and American kestrels will make use of birdhouses built to their unique specifications. Plans for constructing your own bird houses tailored to individual species can be found at various online sites. For those not as good with do-it-yourself projects, department stores, gardening centers and other other shops sell pre-made houses.

Clean your feeders

Frigid cold snaps brought birds flocking to our feeders. As returning birds mingle with lingering winter visitors at our feeders this spring, the chance of spreading disease will increase.

Now is definitely the time to be proactive, cleaning feeders and bird baths regularly and keeping alert to any sign that ill birds might be among the visiting flocks.

Cleaning need not be laborious. Fill a spray bottle with a dilute solution of bleach water. A good ratio is no more than 1 part bleach to 9 parts water. Remove feeders, give them a quick rinse, and then spritz them with the bleach solution. Rinse thoroughly and allow to dry before refilling with seed for the birds.

Enhance brush piles

This past winter with its heavy snow and ice, as well as fierce winds, no doubt brought down many branches. When cleaning your yard of branches, consider adding them to an existing brush pile. I’ve long been a fan of keeping a brush pile in order to provide the resident songbirds with shelter and security from the elements, as well as from predators.

If you don’t have a brush pile, spring’s the perfect time to create one. If an unkempt pile of sticks offends your aesthetic sensibilities, tuck the brush pile into an obscure corner or locate it at the margins of the lawn or garden.

Personally, I like to locate brush piles near my busier feeders. A brush pile gives visiting birds a quick retreat if a predatory hawk arrives unexpectedly. For some birds, the need for dense cover is paramount.

Offering brush piles, as well as hedges and dense shrubbery, will help welcome visitors such as gray catbirds, Eastern towhees, brown thrashers and some sparrows. Wide, open spaces make many songbirds nervous.

Photo by Jean Potter • An American crow visits a bird bath.

Install water features

With a large fish pond, a flowing creek and a couple of mountain seeps on my property, I’ve never needed to introduce an additional water source. For those with properties that don’t offer ready access to water, adding an ornamental pool or fountain, or even a bird bath or artificial waterfall, will act as a magnet for many birds. American robins and cedar waxwings love a place to splish and splash, as well as take a refreshing sip. Migrating warblers, which for the most part ignore feeders, are almost magically drawn to water features. There is also something relaxing for the human psyche when it comes to water features.

Refurbish the landscape

Spring’s a great time to plan ahead. While a handout of sunflower seed is appreciated by many birds, there’s nothing that beats organic sources of food.

Add plants and trees to the landscape of your yard and garden with the express purpose of providing birds with seeds, fruits and berries. Most experts urge native plant varieties that meet the nutritional needs of many bird species.

Flowers can be chosen that provide that desired burst of color for an interval but then go on to produce fruit or seeds craved by many birds. Native flowers can also be planted that offer a natural source of nectar for ruby-throated hummingbirds. Do some homework. Some nurseries specialize in native plants.

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

Get hummingbird feeders out early

Various websites track the annual spring return of hummingbirds. Journey North is one site that relies on citizen scientists to share their first sightings of this tiny, beloved bird.

The first reports of ruby-throated hummingbirds usually surface in early March along the Gulf Coast after these tiny birds make their incredible non-stop flight across the Gulf of Mexico. This arduous journey is their first step to returning points all across eastern North America for the spring and summer nesting season. Those first arrivals are still hundreds of miles away from Northeast Tennessee. There will always be “early birds” even among hummingbirds. Increase the likelihood of seeing one of these tiny gems by putting out a sugar water feeder soon. I’d encourage anyone hoping to attract these birds to have feeders ready for them by the last week of March.

Treat Yourself

Now is also the perfect time to indulge in a purchase that will enhance your enjoyment of the returning birds. If you have been wanting some new birding field guides, a new pair of binoculars, a new software app to help identify birds or a camera to let you document bird sightings with photographs, there’s no time like the present.

Welcome spring and the returning birds at the same time while ensuring maximum enjoyment of both.

•••

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

 

Birds make use of various strategies to attract and keep mates

Leave a reply

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.

•••

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

Hungry robins emerge during deep freeze to feast on berries

Leave a reply

Robins – by the hundreds – poured into downtown Erwin last week. Most of them ended up on perches around the parking lot between the Clinchfield Senior Adult Center and the rear of the offices of The Erwin Record.

Photo by Bryan Stevens • While American robins like fruit when its available, they also spend a lot of time feeding on earthworms and insects.

 

The newspaper’s office manager Ken Silvers alerted me to the presence of the “huge flock” of robins. He even joked that he felt like he had stepped into a scene from the movie “The Birds.” Their arrival had been preceded by several nights of single digit temperatures.

In a few weeks, robins will likely be making their annual spring resurgence, but their mid-January appearance in such numbers was somewhat surprising. The fact is that, although we don’t think of robins very much in winter, they are still very much present in the region. The same is true of waxwings and is particularly true about European starlings.

While downtown Erwin would not usually be an ideal location for robins, there was something present to attract them: Berry-producing ornamental holly trees.

In the colder months of the year, robins form large, loosely organized flocks, often taking up residence in wooded lots. After several days of frigid weather, the robins were likely desperate to exploit an available food source. The flock spent a couple of hours gorging on holly berries. Even later in the day a few dozen robins lingered around the shrubs, gleaning the remaining berries from the branches.

The American robin is a large bird in the thrush family, which in North America also includes such birds as Eastern bluebird, wood thrush and Townsend’s solitaire. It’s probably a bird that is well-known to birders and non-birders alike.

 

 

In the British Isles, the European robin is simply known as “robin” or “robin redbreast.” When the first English colonists arrived in New England and other parts of colonial-era North America, they took pleasure in finding that some of the birdlife in the New World resembled familiar birds from their homeland. The red-breasted American robin looked like the bird they knew in the Old World as “robin,” which motivated them to name the New World bird “robin,” as well.

Sharkolot/Pixabay • Early American colonists from Europe, familiar with the European robin of their homeland, saw the red breast feathers on the American robin and named the large thrush robin as well.

Other than the red breast, however, the two robins are not all that similar. The American robin is the larger of the two birds. Farther separating these two birds is the fact that the European robin is not a thrush but rather a member of the family of Old World flycatchers.

In some other ways, the two robins are similar. Both are fond of earthworms, spending a great deal of their time on the ground foraging for worms. They will also follow human gardeners at their work, waiting patiently for the followed person to disturb the soil with a spade or hoe and expose earthworms for the waiting bird. They are also rather tolerant of humans and have learned to make their own homes close to human dwellings.

Some of the British transplants to North America must have felt homesick for familiar things because several unsuccessful attempts were made to introduce the European robin to the United States and Canada. European robins introduced in New York and Oregon failed to gain a foothold, unlike the introduction of such alien birds as the house sparrow and European starling.

On a few occasions, migrating American robins have overflown their destinations and ended up in the United Kingdom. For instance, an American robin became a first for London birdwatchers when one was found in that nation’s capital city in March of 2006. Whether of the European or American persuasion, robins have long been a favorite of birdwatchers and nature enthusiasts.

In a few weeks we will have more American robins pouring into our lawns, our gardens and our parks. The American robin has always been a perennial harbinger of spring. But it’s not always necessary to wait until winter’s waning to enjoy observation of this popular songbird.

•••

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

Tiffany/Pixabay • The American robin keeps a lower profile but is still present in the region during the winter months.

Birds share fall skies with migrating butterflies, dragonflies

Leave a reply

During a stop at the Unicoi Walmart to visit the pharmacy on Wednesday, Sept. 3, I spied an energetic fluttering of wings in the garden center. Although I’ve spied various birds, including Carolina wrens and house sparrows, making themselves at home in this garden center, this winged creature was quite a bit smaller.

I watched the butterfly flit from marigold to zinnia to fall mums, feasting on the nectar the blooms provided. A closer look revealed the butterfly’s identity as a long-tailed skipper, a species more likely found in South Carolina, Georgia and Florida than Northeast Tennessee.

Photo by Bryan Stevens • A long-tailed skipper sips nectar from a marigold at the garden center at the Unicoi Walmart.

According to Wikipedia, the long-tailed skipper is a spread-winged skipper butterfly found throughout tropical and subtropical South America, south to Argentina and north into the eastern United States and southern Ontario. It cannot live in areas with prolonged frost. I have seen lots of them in South Carolina and Georgia; this is my second sighting of one in Northeast Tennessee. I found the first one in a garden in Elizabethton near the Covered Bridge.

The sighting reminded me that it’s not only birds using the skies for migration as we advance toward the autumn season. I also remembered a question I got from a reader back in 2014. Rhonda Eller of Chilhowie, Virginia, posted a question on my Facebook page about some dragonflies that appeared in her yard on Sept. 10.

“We have had a sudden breakout of dragonflies in our yard,” Rhonda explained. “We seldom see more than one or two at a time.”

Rhonda wondered if the dragonflies might have been drawn to her yard in pursuit of some sort of favorite insect prey. She also speculated that the recent dry conditions might have attracted the dragonflies.

Photo by Bryan Stevens • The wandering glider is a migratory species of dragonfly.

I responded at the time to her query by explaining that birds share the skies at this time of year with many other migrants. Some dragonflies, just like birds, migrate. A species known as green darner is one that migrates. These darners are rather large, for a dragonfly, and travel in swarms. A couple of years ago I observed thousands of these dragonflies swarming over a municipal swimming pool and a nearby fish pond at Erwin Fishery Park.

The WSLS Channel 10 television station out of Roanoke, Virginia, reported on swarms of dragonflies so large that they got picked up by local radar. Rhonda shared a link to the station’s story on my Facebook page.

Of course, swarms of migrating insects are bound to get the attention of predatory birds. The same day that Rhonda experienced the influx of migrating dragonflies, I witnessed dozens of common nighthawks and chimney swifts swooping through the skies over my home. With a little more attention to detail, I also noticed the dragonflies sharing the skies with these birds.

I suspect that the nighthawks were feeding on the large darners while the swifts, which are much smaller birds, focused their foraging efforts on smaller winged insects. Tom McNeil, a neighbor and fellow member of the Elizabethton Bird Club, reported seeing nighthawks and swifts, too. Tom lives on the other side of a mountain ridge that separates our homes.

Tim Morris, a Facebook friend from Australia, noted in a comment on my post about the nighthawks that his country is home to a bird known as the tawny frogmouth, a relative of the common nighthawk. Tim noted that frogmouths are big birds with camouflage markings that allow them to pretend to be dead tree boughs by day. “They feed not only on insects but mice and lizards, too,” he added.

Evidence of fall migration continued the next day when I detected a small wave of warblers foraging in trees at the edge of my yard. I saw five different species — American redstart, worm-eating warbler, Cape May warbler, Blackburnian warbler and Tennessee warbler — in the space of half an hour. Of the warblers in the flock, the Blackburnian and Cape May are some of the more vibrant ones.

So far in 2024, warblers have absented themselves from my yard this fall. It’s started to aggravate me, but I’ll try to be patient.

The Blackburnian warbler’s common name commemorates Anna Blackburne, an English naturalist who lived from 1726 to 1793. Her brother, Ashton, had immigrated to the United States, which made it possible for him to send his sister many specimens, especially birds. Their father, a salt merchant by trade, was also a well-respected amateur naturalist. In addition to the warbler that bears her name, Anna Blackburne also had a species of beetle named in her honor.

Both the Cape May and Tennessee warblers are named for the locations from which they were first collected. Neither of these small songbirds are closely affiliated with Cape May, New Jersey, or the Volunteer State. The Cape May warbler is also known as the “tiger warbler” for the dramatic black striping across its bright yellow breast. A green back and chestnut cheek patch make the Cape May warbler quite unlike any of its close kin. Even its former scientific name — Setophaga tigrina — paid homage to the striped big cat. The term “setophaga” translates to “moth eater” and is a reference to this warbler’s intense fondness for the caterpillars known as spruce budworms that occasionally produce outbreaks in the northern spruce forests that serve as the nesting range for the Cape May warbler.

According to the website, “All About Birds,” Cape May warblers have unusually shaped tongues that allow them to sip nectar from tropical flowers during the winter months spent in Central America and the Caribbean. Their unique tongues also make it possible for them to enjoy sips of sugar water from hummingbird feeders.

Whether its dragonflies, nighthawks, warblers, hummingbirds or a long-tailed skipper in a Walmart garden center, plenty of birds and other flying creatures will be moving through the region for the next few weeks. Now’s the time to get outdoors and look for some of these migrants.

•••

Bryan Stevens has been birding actively for about 30 years. He has written a weekly column on birds and birding since 1995. To ask a question, make a comment or share a sighting, email him at ahoodedwarbler@aol.com.

September brings spike in bird migration

Leave a reply

Hans Toom/Pixabay • Few warblers make as great a journey as the blackpoll warbler. This small songbird makes a roundtrip flight of 12,400 miles for its seasonal migrations each year.

September’s arrival puts fall migration into sharp focus. The birds that returned this past spring — the warblers, vireos, tanagers, grosbeaks, flycatchers, hawks, hummingbirds and many more — have begun or are beginning to make their way back to the locations where they will spend the winter months far from the cold, bleak conditions over most of North America.

Every morning as I leave for work I hear the buzz of hummingbird wings. When I return in the evening, I am often greeted by the scolding calls of red-eyed vireos from the woodlands around my home.

Some of these birds migrate out of the tropics every spring to avoid competition. Others find North America a land of abundant, albeit temporary, resources. This land of plenty offers a wealth of insects, seeds, fruit and other nourishing, nutritious food to help parent birds keep their strength while they work to ensure their young thrive. Of course, once the bountiful period concludes, they return to the tropics of Central and South America to winter. Those that do so successfully will make the journey back to the United States and Canada in the spring. It’s an ongoing cycle, repeating year after year, season after season.

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.

Photo by Jonathan Cannon/Pixabay.com • The Arctic tern outdoes all other birds when it comes to migration. These seabirds journey from their Arctic nesting grounds to spend the winter around the Antarctic, a journey of some 50,000 miles a year.

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.

The ruby-throated hummingbird, a favorite of many bird enthusiasts living in the eastern United States, makes an impressive migration each year. 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 Bryan Stevens • A ruby-throated hummingbird perches at a feeder for a sip of sugar water.

Among North America’s buteo hawks, which includes raptors such as red-shouldered hawk and red-tailed hawk, the broad-winged hawk stands out as a dedicated migrant. These hawks form flocks that at times number in the hundreds or thousands as they sail and glide on thermals rising over various mountain ranges. These hawks and other raptors are well-known in the region for migrating past the Mendota Fire Tower in Southwest Virginia every September and early October.

The broad-winged hawk’s counterpart in the western United States is Swainson’s hawk, which shares the broad-winged hawk’s inclination for migrating in large flocks. Swainson’s hawk is named for William Swainson, the famous 19th century English naturalist for which Swainson’s thrush is also named.

The hooded warbler, my favorite member of the migratory New World warblers, migrates back to Mexico and Central America for the winter months after nesting during the spring and summer in a range concentrated in the southeastern United States. The males, after going quiet in late summer, have started singing on occasion from the shaded woods around my house. I think this has more to do with restlessness as they prepare for to depart on a migration flight that will take them to the balmy Caribbean, Mexico and Central America while we shiver through the months between October and April. It’s not a migration of an incredible distance, but it’s still quite an accomplishment for a bird only five inches long and weighing less than half an ounce.

Another warbler is a true migratory champion. Few warblers 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 Atlantic 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. Once again, during the time they spend flying over open ocean, these tiny warblers do not feed.

Fall’s a great time to witness the variety of avian life. Look for some of these migrants passing through your yards, gardens or favorite birding spots.

For those wanting suggestions for seeking out migrating birds, the linear trail in Erwin, Rocky Fork State Park in Flag Pond and Limestone Cove Recreation Area are some good bets.

•••

To ask a question, make a comment or share a sighting, email me at ahoodedwarbler@aol.com.