Golden-crowned Warbler
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| iGolden-crowned Warbler | ||||||||||||||
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| Basileuterus culicivorus (Deppe, 1830) |
The Golden-crowned Warbler, Basileuterus culicivorus, is a small New World warbler. It breeds from Mexico and south through Central America to northeastern Argentina and Uruguay, and on Trinidad.
It is a species mainly of lowland forests, which lays two to four rufous-spotted white eggs in a domed nest in a bank, often by a forest path, or under leaves on the forest floor. Parent birds will feign injury to distract potential nest predators.
The Golden-crowned Warbler is 12.7 cm long and weighs 10g. It has grey-green upperparts and bright yellow underparts. The head is grey with a black-bordered yellow crown stripe, a yellow supercilium and a black eyestripe.
Sexes are similar, but the immature Golden-crowned Warbler is duller, browner, and lacks the head pattern other than the eyestripe.
Golden-crowned Warbler has 13 geographical races, which fall into three groups. The Central American culicivorus group ("Stripe-crowned Warbler") is essentially as described above, the southwestern cabanisi group ("Cabanis’s Warbler") has grey upperparts and a white supercilium, and the aureocapillus group ("Golden-crowned Warbler") of the southeast has a white supercilum and orange-rufous crown stripe. The three groups are sometimes considered to be different species.
These birds feed on insects and spiders. The song is a high thin pit-seet-seet-seet-seet, and the call is a sharp tsip.
[edit] References
- BirdLife International (2004). Basileuterus culicivorus. 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
- Birds of Venezuela by Hilty, ISBN 0-7136-6418-5
- Birds of Trinidad and Tobago by ffrench, ISBN 0-7136-6759-1
