Tag Archives: Blue-headed Vireo

Think of the vireos as ‘Plain Janes’ of songbirds

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Photo by FotoRequest/Adobe Stock • A red-eyed vireo grasps a tree branch, a common pose for this bird that spends time concealed in the woodland canopy. The red eye can be difficult to detect unless lighting conditions are optimal for observers.

The start of migration appears to be more of a crawl than a sprint this fall, but I have picked up a few signs. For instance, I’ve been hearing the scolding sounds of red-eyed vireos from woodland edges for the past few weeks. A dedicated singer at most times, this vireo seems more likely to produce a harsh, scolding cry at this time of the year. Other hints of the steady advance of fall migration include flocks of common nighthawks and chimney swifts congregating in the skies over my home and the unmistakable croaking of common ravens from nearby ridges.

So far, I’ve seen only a few warblers, including black-throated blue warbler and hooded warbler. At a glance, vireos would appear related to the wood warblers. Research into DNA, however, has led many experts to contend that vireos are more closely related to crows and shrikes. Like the flycatcher and hummingbird families, the vireo family is exclusive to the New World. With a mere 50 species, vireos and their kin are vastly outnumbered by flycatchers and hummingbirds. The majority of vireos resides in the tropics, but about a dozen species nest in the United States.

In East Tennessee Southwest Virginia and Western North Carolina, vireos resident during the summer months include red-eyed vireo, white-eyed vireo, blue-headed vireo, yellow-throated vireo and warbling vireo. Most people are likely unaware of vireos. Although not uncommon, these birds are more frequently heard than seen. They spend much of their time in the forest canopy or in dense brush. When singing, they can remain at a perch, unmoving, for long periods of time.

Photo by Jean Potter • A red-eyed vireo sits on its carefully woven nest among a canopy of leaves.

The loud scolding calls of red-eyed vireos often heard this time of year are given apparently when the vireo is alarmed or irritated. This scolding vocalization is quite unlike the usual ones produced by this bird. First and foremost, the call is louder than one would think could be produced by a bird that is only about six inches long. During the summer season, the red-eyed vireo is also one of the most persistent of singing songbirds. Another common name for the red-eyed vireo is “preacher bird,” so called because of its tendency to unceasingly deliver its song.
The red-eyed vireo is still considered one of eastern North America’s most common summer breeding birds. At one time, the red-eyed vireo was probably the most common breeding bird in eastern woodlands. That, sadly, is no longer the case. Red-eyed vireos are olive-green above and clean white below. These birds show a distinctive head pattern consisting of a gray crown and white eyebrow stripe bordered above and below by black lines. Adults also have the red eyes that give this particular vireo its common name. The term “vireo,” originating in Latin, can be translated into English as “green bird.” It’s an apt description, as many of these small birds are primarily dull green in coloration. Consider the vireos the “Plain Janes” of songbirds.

Photo by Jean Potter • A red-eyed vireo fledgling calls for a food delivery, which will arrive in the beak of one of the young bird’s parents.

A red-eyed vireo painted by John James Audubon.

Other vireos that can be found in the United States, for at least part of the year, include Philadelphia vireo, plumbeous vireo and Cassin’s vireo. A specialty of Florida is the black-whiskered vireo, while the black-capped vireo is an endangered species found in Texas. Two others, Bell’s vireo and gray vireo, are identified as species of concern on the Audubon Watchlist.

Many species of vireo are also found in the islands of the Caribbean, including Jamaican vireo, Cuban vireo and Puerto Rican Vireo. The thick-billed vireo can be found in the Bahamas, which were recently pulverized by Hurricane Dorian. The thick-billed vireo is very similar to the white-eyed vireo, which is a summer resident in our region.

My only birding outside of the United States took place in the Bahamas 20 years ago. My highlights included two hummingbirds — Bahama woodstar and Cuban emerald — as well as bananaquits, black-faced grassquit, Western spindalis, Cuban pewee and other interesting species. I didn’t see a thick-billed vireo, but I did get my first-ever look at a Cape May warbler. I was visiting the Bahamas in January of 1999, which proved a fortunate time since many warblers migrate to these islands for the cold months. I’m hopeful that both people and birds on the islands Abaco and Grand Bahama and smaller islands most affected by the monster storm are able to recover soon.

Some of the more colorful common names for vireos include the dwarf vireo, golden vireo and yellow-winged vireo.  In Central and South America, the vireo family expands to include many birds with common names such as shrike-vireo, greenlet and peppershrike. Some of the varied species include lemon-chested greenlet, green shrike-vireo and the black-bellied peppershrike.

I still focus most of my birding efforts on warblers in the autumn, but vireos are always a pleasant diversion when the colorful warblers make themselves scarce.

Photo by Jean Potter • The blue-headed vireo prefers wooded habitats at higher elevations.

Unicoi County summer survey finds 107 bird species

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Photo by JudaM/Pixabay.com • Birds that nest at some high elevations, such as this red-breasted nuthatch, thrive at different locations in Unicoi County. A total of six red-breasted nuthatches were tallied on the recent Unicoi County Summer Bird Count.

The Elizabethton Bird Club holds two summer bird counts to supplement other population monitoring efforts on the birdlife of Tennessee. Six years ago, the club launched an annual survey of summer bird populations in Unicoi County.

The sixth annual Unicoi County Summer Count was held Saturday, June 15, with 16 observers in five parties. A total of 107 species was found, which is slightly below the average of 109 species. Unicoi County offers several high elevation species of birds not easily found in the region, according to compiler Rick Knight.

Knight noted that highlights for the count include sharp-shinned hawk, bald eagle, yellow-bellied sapsucker, least flycatcher, warbling vireo, common raven, red-breasted nuthatch, brown creeper, golden-crowned kinglet and hermit thrush. The count also found 18 species of warblers, including Swainson’s, Kentucky, magnolia and prairie.

Photo by Jean Potter • Golden-crowned kinglet is another high-elevation species found in Unicoi County during the summer.

The most common birds found in the count included American robin (241), European starling (224) indigo bunting (147) and song sparrow (146).

Some expected birds could not be found on the day of the count, including ruffed grouse, great horned owl, winter wren, Blackburnian warbler and pine warbler.

I counted with Dave and Connie Irick, Brookie and Jean Potter and Brenda Richards in the Limestone Cove community of Unicoi County. Some of our best birds included yellow-breasted chat, yellow-bellied sapsucker, rose-breasted grosbeak and Swainson’s warbler.

The total for this year’s Unicoi Bird Count follows:

Canada goose, 90; wood duck, 27; mallard, 33; wild turkey, 5; great blue heron, 2; and green heron, 3.

Photo by Bryan Stevens • Both black and turkey vultures were well represented on the Unicoi County Summer Bird Count.

Black vulture, 7; turkey vulture, 33; sharp-shinned hawk, 1; Cooper’s hawk, 1; bald eagle, 1; broad-winged hawk, 9; red-tailed hawk, 7; and American kestrel, 3.

Killdeer, 9; rock pigeon, 78; mourning dove, 70; yellow-billed cuckoo, 7; Eastern screech-owl, 1; and barred owl, 3.

Chuck-will’s widow, 3; Eastern whip-poor-will, 9; chimney swift, 37; ruby-throated hummingbird, 14; and belted kingfisher, 2.

Red-bellied woodpecker, 8; yellow-bellied sapsucker, 8; downy woodpecker, 17; hairy woodpecker, 1; Northern flicker, 8; and pileated woodpecker, 11.

Eastern wood-pewee, 4; Acadian flycatcher, 26; least flycatcher, 1; Eastern phoebe, 41; great crested flycatcher, 2; and Eastern kingbird, 8.

White-eyed vireo, 3; yellow-throated vireo, 1; blue-headed vireo, 23; warbling vireo, 2; and red-eyed vireo, 105.

Blue jay, 66; American crow, 84; common raven, 8; Northern rough-winged swallow, 53; purple martin, 40; tree swallow, 106; barn swallow, 152; and cliff swallow, 128.

Carolina chickadee, 69; tufted titmouse, 55; red-breasted nuthatch, 6; white-breasted nuthatch, 15; brown creeper, 3; house wren, 22; and Carolina wren, 60.

Blue-gray gnatcatcher, 20; golden-crowned kinglet, 4; Eastern bluebird, 62, veery, 11; hermit thrush, 3; wood thrush, 41; and American robin, 241.

Gray catbird, 25; brown thrasher, 11; Northern mockingbird, 27; European starling, 224; and cedar waxwing, 34.

Ovenbird, 36; worm-eating warbler, 17; Louisiana waterthrush, 10, black-and-white warbler, 15; Swainson’s warbler, 8; Kentucky warbler, 1; common yellowthroat, 10; hooded warbler, 75; American redstart, 2; Northern parula, 20; magnolia warbler, 1; yellow warbler, 6; chestnut-sided warbler, 9; black-throated blue warbler, 19; yellow-throated warbler, 15; prairie warbler, 1; black-throated green warbler, 17; Canada warbler, 8; and yellow-breasted chat, 2.

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Eastern towhee, 46; chipping sparrow, 55; field sparrow, 7; song sparrow, 146; and dark-eyed junco, 17.

Scarlet tanager, 30; Northern cardinal, 64; rose-breasted grosbeak, 5; blue grosbeak, 3; and indigo bunting, 147.

Red-winged blackbird, 70; Eastern meadowlark, 9; common grackle, 71; brown-headed cowbird, 14; orchard oriole, 3; Baltimore oriole, 1; house finch, 19; American goldfinch, 92; and house sparrow, 18.

Unicoi County offers some great habitat for finding birds. In addition to the new state park, the county also offers Erwin Fishery Park and adjacent walking trails, as well as Unaka Mountain. The diversity of birds found on the summer count is a testament to the value of these habitats for birds and other wildlife.

Photo by Bryan Stevens • Green herons, such as this one, are found along the linear trail in Erwin during the summer months.

 

Region’s drab vireos more famous for persistent singing than their appearance

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In some recent columns, I’ve focused on some of the summer songbirds — scarlet tanager, rose-breasted grosbeak – with flashy, bright plumages.  Not all our summer nesting birds boast such vivid coloration. In fact, one family of songbirds — the vireos — is known for its dull plumage.

Photo by Bryan Stevens A blue-headed vireo sings from a woodland perch.

Photo by Bryan Stevens A blue-headed vireo sings from a woodland perch.

I’ve had some interesting encounters with vireos in the past few weeks. From early May through mid-June, a male red-eyed vireo sang daily from the woodland near my home. He would commence signing early in the morning and continue through late afternoon. I never saw him, which is not too surprising. Red-eyed vireos lead almost their entire lives in the forest canopy. If you do manage to observe one, you’ll see an olive green bird with white underpart. The red-eyed vireo, known scientifically as Vireo olivaceus, shows a narrow white eyebrow bordered above with black. It also has a grayish crown and the namesake red eye.
At a glance, the vireos would appear related to the wood warblers. Research into vireo DNA, however, has led many experts to contend that vireos are more closely related to crows and shrikes. Like the flycatcher, warbler and hummingbird families, the vireo family is exclusive to the New World. There are about 50 species of vireos. The majority reside in the tropics, but about a dozen species spend their nesting season within the United States.

JP-RedEyedVireo-Fledgling

Photo Courtesy of Jean Potter A young red-eyed vireo begs for food, which will bring a prompt response from a nearby parent.

In Southwest Virginia and Northeast Tennessee, vireos resident during the summer months include red-eyed, white-eyed, blue-headed, yellow-throated and warbling.  Most people are likely unaware of vireos. Although not uncommon, these birds are much more frequently heard than seen. They spend much of their time in the forest canopy or in dense brush. When singing, they can remain at a perch, unmoving, for long periods of time. 
On recent woodland walks I have heard the loud scolding calls of red-eyed vireos. This call, given apparently when the vireo is alarmed or irritated, is quite unlike the usual vocalizations produced by this bird. First and foremost, the call is louder than one would think could be produced by a bird that is only about six inches long.
During the summer season, the red-eyed vireo is also one of the most persistent of singing songbirds. Another of its common names is “Preacher Bird,” so called because of its tendency to unceasingly deliver it song. To give you an idea of just how persistently this bird sings, the red-eyed vireo holds the record for singing its song the most times in a single day. Some individuals have been recorded singing the series of emphatic syllables more than 20,000 times in a day. The song is not particularly musical, consisting of whistled phrases, each slightly different and punctuated with brief pauses. 

Photo Courtesy of Jean Potter A red-eyed vireo sits on its basket-shaped nest.

Photo Courtesy of Jean Potter
A red-eyed vireo sits on its basket-shaped nest.

The red-eyed vireo is still considered one of eastern North America’s most common summer breeding birds. At one time, this bird was probably the most common breeding bird in Eastern woodlands. It is still one of the most widespread, ranging from the Eastern United States into the Northwestern United States and across Canada. In fall, they withdraw to spend the winter in South America.
The term “vireo,” originating in Latin, can be translated into English as “green bird.” It’s an apt description, as many of these small birds are primarily dull green in coloration.
There is an endangered vireo, the black-capped vireo, a bird with a limited breeding range in Texas. Black-capped vireos numbers have dwindled to perilous levels due to the loss of low growing woody cover these birds need for breeding purposes. The cause of the loss of habitat varies, but includes the clearance of land for livestock as well as overgrazing by livestock and deer. In the past, fires regularly opened up such habitats. Due to modern fire control practices, such fires are no longer a natural occurrence. Since this species is already endangered, brown-headed cowbirds have also contributed to the problem since the cowbirds slip their own eggs into the nests of black-capped vireos.

Vireo_blackcapped_B07T

Photo by USFWS The black-capped vireo is the only member of the vireo family in the United States classified as endangered.

Two others, Bell’s vireo and gray vireo, are identified as species of concern on the Audubon Watchlist. This listing spotlights species that may bear intense scrutiny to make certain they don’t become endangered.
Other vireos that can be found in the United States, for at least part of the year, include Philadelphia vireo, plumbeous vireo and Cassin’s vireo. A specialty of Florida is the black-whiskered vireo. 
Many species of vireo are also found in the islands of the Caribbean, including Jamaican vireo, Cuban vireo and Puerto Rican vireo. Some of the more colorful common names for vireos include the yellow-green vireo, golden vireo and yellow-winged vireo. 
In Central and South America, the vireo family expands to include many birds with common names such as “Shrike-Vireo,” “Greenlet” and “Peppershrike.” Some of the varied species include the lemon-chested greenlet, green shrike-vireo and the black-bellied peppershrike.

Warbling_Vireo

Photo by Dave Menke/USFWS A warbling vireo is the most drab member of a family known for its drabness. The warbling vireo’s impressive song, however, reminds many listeners of the song of the gaudy painted bunting.

Known by the scientific name, Vireo gilvus, the warbling vireo is another member of this family of songbirds that can be found in the region. It is named for its distinctive, warbling song. Some experts have likened its song to that of the painted bunting. That must be about all the two birds have in common. In contrast with the gaudy painted bunting, the warbling vireo can quite honestly stake a claim as one of our most drab songbirds. Overall, this is a grayish little bird with a white eyeline that is paler than the rest of its plumage. Its legs are blue-gray in color and this species has a bill that is stout like other vireos and unlike the beaks of most warblers. It’s their plainness that is the most distinctive aspect of their appearance.
Many vireos construct deep cup- or basket-shaped nests, often in the higher branches of tall trees. Male and female share incubation duties and work together to feed their young. 
Most vireos feed on in­sects during their summer stay north of the border. However, during migration they often feed on berries and continue to do so on their wintering grounds. Experts have noted that the white-throated vireo is particularly fond of gumbo-limbo seeds. This tropical tree can be found from southern Florida and Mexico, as well as throughout the Caribbean and in South America in Brazil and Venezuela.

Photo by Jean Potter The Blue-headed Vireo prefers wooded habitats at higher elevations.

Photo by Jean Potter
The Blue-headed Vireo prefers wooded habitats at higher elevations.

At times, it’s important to use our ears, as well as our eyes, when trying to find birds. That’s particularly true of the vireos. The widespread family can be found in rural areas, as well as suburban settings. Tall stands of trees are one of the essential requirements. So, when you next hear some whistled phrases coming from the treetops, be sure to look up. You may get lucky.
To hear a singing red-eyed vireo, visit the link below to view a video of the bird on YouTube: