Black-throated Green Warblers, Dendroica virens
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The Black-throated Green Warbler, Dendroica virens, is a small songbird of the New World warbler family.
It is 12 cm long and weighs 9 g, and has an olive-green crown, a yellow face with olive markings, a thin pointed bill, white wing bars, an olive-green back and pale underparts with black streaks on the flanks. Adult males have a black throat and upper breast; females have a pale throat and black markings on their breast.
The breeding habitat of the Black-throated Green Warbler is coniferous and mixed forests in eastern North America and western Canada and cypress swamps on the southern Atlantic coast. These birds' nests are open cups, which are usually situated close to the trunk of a tree.
These birds migrate to Mexico, Central America, the West Indies and southern Florida.
Black-throated Green Warblers forage actively in vegetation, and they sometimes hover or catch insects in flight. Insects are the main constituents of these birds' diets, although berries will occasionally be consumed.
The song of this bird is a buzzed zee-zee-zee-zooo-zeet or zoo-zee-zoo-zoo-zeet. The call is a sharp tsip.
This bird is vulnerable to nest parasitism by the Brown-headed Cowbird.
References
- BirdLife International (2004). Dendroica virens. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 10 May 2006. Database entry includes justification for why this species is of least concern
- Curson, Quinn and Beadle,New World Warblers ISBN 0-7136-3932-6
- Stiles and Skutch, A guide to the birds of Costa Rica’’ ISBN 0-8014-9600-4
External links
- Black-throated Green Warbler - Dendroica virens - USGS Patuxent Bird Identification InfoCenter
- Black-throated Green Warbler Species Account - Cornell Lab of Ornithology
- Black-throated Green Warbler Information - South Dakota Birds and Birding
- Birds of Nova Scotia
- GE Neise Photography / Animals / Black-throated green warbler
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