Virginia's Warbler
Encyclopedia
Virginia's Warbler is a species of New World warbler
New World warbler
The New World warblers or wood-warblers are a group of small, often colorful, passerine birds restricted to the New World. They are not related to the Old World warblers or the Australian warblers....

.

Despite what its name may suggest, Virginia's warbler is not actually named after the American State of Virginia
Virginia
The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

, which makes sense as the birds range only reaches as far east as the state of Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

. The bird's common eastern range is central and southern mountains of Colorado
Colorado
Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

, central Wyoming
Wyoming
Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High...

, and central and western New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

. The bird was named for Virginia Anderson, the wife of an army surgeon who discovered the bird at Fort Burgwin, New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

, in 1858. When Spencer Fullerton Baird
Spencer Fullerton Baird
Spencer Fullerton Baird was an American ornithologist, ichthyologist and herpetologist. Starting in 1850 he was assistant-secretary and later secretary of the Smithsonian Institution in Washington, D.C...

 of the Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

 fully described the bird for science in 1860 he honored the wishes of the warbler's discoverer and designated Virginia to be both the bird's common and scientific name.

Virginia's warbler is a small bird, only 4 to 4½ inches in length. It is mainly gray in color, with a lighter colored under-belly and a white eye ring. The rump and undertail coverts
Covert (feather)
A covert feather on a bird is one of a set of feathers, called coverts, which as the name implies, cover other feathers. The coverts help to smooth airflow over the wings and tail.- Wing-coverts :...

 are yellow. Males also have a yellow patch on their breast and a red cap, both of which are lacking in female and immature birds. Virginia's warbler can be easily mistaken for the Colima Warbler
Colima Warbler
The Colima Warbler, Oreothlypis crissalis, is a New World warbler. It is mainly found in the Sierra Madre Occidental of central Mexico, though its range just barely extends into adjacent southwestern Texas in the Chisos Mountains of Big Bend National Park....

, but it is smaller and has a more yellow rump.

Life history

Virginia's warbler is common in dense oak and pinyon woodlands and brushy streamside hills at altitudes ranging from 6000–9000 ft (1,828.8–2,743.2 m). It summers in the south-western United States
Southwestern United States
The Southwestern United States is a region defined in different ways by different sources. Broad definitions include nearly a quarter of the United States, including Arizona, California, Colorado, Nevada, New Mexico, Oklahoma, Texas and Utah...

 and will migrate
Bird migration
Bird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat or weather. Sometimes, journeys are not termed "true migration" because they are irregular or in only one direction...

 as far south as Belize
Belize
Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...

 during the winter, as well as stopping in several Caribbean islands such as the Bahamas, Cuba
Cuba
The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

, and the Turks and Caicos Islands
Turks and Caicos Islands
The Turks and Caicos Islands are a British Overseas Territory and overseas territory of the European Union consisting of two groups of tropical islands in the Caribbean, the larger Caicos Islands and the smaller Turks Islands, known for tourism and as an offshore financial centre.The Turks and...

.

Nests are built on the ground, hidden amongst dead leaves and tufts of grass at the base of a shrub or young tree. The nest is cup-shaped and constructed from moss, grass, strips of bark, and roots. The female will lay between three to five eggs, which are white in color and dotted with fine brown speckles. Young are attended to by both sexes, but incubation period and other nesting habits are mostly unknown.

Books

  • Olson, C. R., and T. E. Martin. 1999. Virginia’s Warbler (Vermivora virginiae). In The Birds of North America, No. 477 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.

Thesis

  • Conway, Courtney Joseph, Ph.D., (1998) Ecological and physiological constraints on avian incubation behavior and nest-site selection. University of Montana, 149 pages.

Articles

  • Berry ME & Bock CE. (1998). Effects of habitat and landscape characteristics on avian breeding distributions in Colorado foothills shrub. Southwestern Naturalist. vol 43, no 4. p. 453-461.
  • Howard P. (1999). Virginia's Warbler at Kennesaw Mountain, Cobb County, Georgia. Oriole. vol 64, no 1-2. p. 5-6.
  • Martin PR & Martin TE. (2001). Behavioral interactions between coexisting species: Song playback experiments with wood warblers. Ecology. vol 82, no 1. p. 207-218.
  • Martin PR & Martin TE. (2001). Ecological and fitness consequences of species coexistence: A removal experiment with wood warblers. Ecology. vol 82, no 1. p. 189-206.
  • Sedgwick JA. (1987). Avian Habitat Relationships in Pinyon-Juniper Woodland. Wilson Bulletin. vol 99, no 3. p. 413-431.
  • Swanson DL, Palmer JS, Liknes ET & Dean KL. (2000). A breeding population of Virginia's warblers in the southwestern Black Hills of South Dakota. Southwestern Naturalist. vol 45, no 1. p. 39-44.
  • Voelker, Gary and Sara L McFarland. (2002) Molt patterns and molting grounds of Lucy's and Virginia's Warblers: Similar yet different. The Wilson Bulletin. Vol 114, no 2. p. 255 (9 pages).

External links

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