Blue-winged Warblers
The Blue-winged Warbler, Vermivora pinus, is a fairly common New World warbler, 11.5 cm long and weighing 8.5 g.
Distribution / Range
It breeds in eastern North America in southern Ontario and the eastern USA. Its range is extending northwards, where it is replacing the very closely related Golden-winged Warbler, Vermivora chrysoptera.
It is migratory, wintering in southern Central America. It is a very rare vagrant to western Europe, with one bird wandering to Ireland.
Description
The breeding male Blue-winged Warbler is unmistakable. It is yellow above and below. The wings are gray with two white bars, and there is a black eye stripe.
Females are duller, but otherwise similar.
This species forms two distinctive hybrids with Golden-winged Warbler. The commoner, genetically dominant Brewster's Warbler is gray above and whitish (male) or yellow (female) below. It has a black eye stripe and two white wing bars.
The rarer recessive Lawrence's Warbler has a male plumage which is green and yellow above and yellow below, with white wing bars and the same face pattern as male Golden-winged. The female is gray above and whitish below with two yellow wing bars and the same face pattern as female Golden-winged.
Breeding / Nesting
The breeding habitat is open scrubby areas. Blue-winged Warblers nest on the ground or low in a bush, laying 4-7 eggs in a cup nest.
Diet / Feeding
These birds feed on insects, and spiders.
Calls / Vocalization
The song is a series of buzzing notes. The call is a sharp chip.
References
- BirdLife International (2004). Vermivora pinus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is of least concern
- New World Warblers by Curson, Quinn and Beadle, ISBN 0-7136-3932-6
External links
- Blue-winged Warbler - Vermivora pinus - USGS Patuxent Bird Identification InfoCenter
- Blue-winged Warbler Species Account - Cornell Lab of Ornithology
- Blue-winged Warbler Information - South Dakota Birds and Birding
- Stamps for Cuba-(incorrect rangemap pictured)
- Blue-winged Warbler photo gallery VIREO
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