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Yellow Warbler

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[[Image:Yellow_Warbler.jpg|thumb|550px|right|Male<br />Photo by {{user|kegressy|kegressy}} <br />Point Pelee, Ontario, [[Canada]]]] [[Image:Yellow_Warbler.jpg|thumb|550px|right|Male<br />Photo by {{user|kegressy|kegressy}} <br />Point Pelee, Ontario, [[Canada]]]]
;[[:Category:Dendroica|Dendroica]] petechia ;[[:Category:Dendroica|Dendroica]] petechia
 +'''Includes: Mangrove Warbler'''
==Identification== ==Identification==
A widespread New World warbler, with great geographical variation.<br /> A widespread New World warbler, with great geographical variation.<br />

Revision as of 15:14, 1 March 2011

MalePhoto by kegressy Point Pelee, Ontario, Canada
Male
Photo by kegressy
Point Pelee, Ontario, Canada
Dendroica petechia

Includes: Mangrove Warbler

Contents

Identification

A widespread New World warbler, with great geographical variation.

  • L. 4 in
  • Thin, pointed bill
  • Mostly yellow plumage
  • Upperparts greenish-yellow
  • Yellowish legs
  • Plain yellow face with yellow eye ring

Male

  • Golden yellow
  • Rusty streaks on breast and flanks
  • In the tropical parts of its breeding range this bird (especially the male) may have a chestnut head or crown patch.
Subspecies chloraPhoto by caribemotion Cayos Siete Hermanos, Dominican Republic, 2009
Subspecies chlora
Photo by caribemotion
Cayos Siete Hermanos, Dominican Republic, 2009

Female

  • Plain yellow
  • Streaks on breast absent or barely present

Some have pale gray wash to plumage (southwestern US)

Distribution

Breeds within North America from Alaska east across Canada to Newfoundland and south to southern California, northern Oklahoma, and northern Georgia; local in southern Florida; these subspecies which belong to the aestiva group of subspecies which winters in tropics. Additionally found in a number of largely non-migratory subspecies in the Caribbean (the petechia = "golden warbler" group), and in Mexico, Central America and northern South America (the erithachorides = "mangrove warbler" group). In total, there are thirty-four subspecies. The three groups mentioned have previously been considered separate species but are now considered one wide-ranging species.

Accidental to Greenland (2 records), Iceland (1 record), and Great Britain (3 records).

FemalePhoto by bobsofpaMagee Marsh, Ohio, USA, May 2009
Female
Photo by bobsofpa
Magee Marsh, Ohio, USA, May 2009

Taxonomy

Sometimes split in two species, American Yellow Warbler (Dendroica aestiva) and Mangrove Warbler (Dendroica petechia).

Consists of as many as 43 subspecies.

Subspecies1

  • D. p. aequatorialis2 - breeds in the Pearl Islands and adjacent Panama
  • D. p. aestiva - breeds across eastern United States west to Montana, Wyoming and eastern Colorado
  • D. p. aithocorys - breeds along the pacific coast of Panama from Chiriquí to Coclé
  • D. p. albicollis2 - breeds in Hispaniola, Gonâve and adjacent islands
  • D. p. alsiosa2' - breeds in the Grenadines
  • D. p. amnicola - breeds in boreal Canada from eastern Yukon Territory east to Newfoundland
  • D. p. armouri - breeds on Isla Providéncia
  • D. p. aureola - breeds on Cocos Island and Galapagos Islands
  • D. p. aurifrons2 - breeds coastal Venezuela, Tortuga Islands, and Piritu
JuvenilePhoto by mrmikeCuba, January 2007
Juvenile
Photo by mrmike
Cuba, January 2007

Habitat

In the US, inhabits moist thickets, especially along streams and in swampy areas, gardens, overgrown pastures, and woodland edges, it is more limited to riparian habitat in the west than the east.

The erithachorides group mainly belongs in mangroves, while the petechia group exhibit geographical variation in its habitat choice, ranging from mangroves to coastal scrub to highland moist forest depending on the island.

Behaviour

Breeding

4 or 5 pale blue eggs, thickly spotted with brown, in a well-made cup of bark, plant fibers, and down, placed in an upright fork in a small sapling.

The main species to be paratisized by cowbirds (Brown-headed Cowbird in temperate North America and Shiny Cowbird in tropical areas). If the female finds an alien egg in the nest she will cover it and lay another clutch.

Vocalisation

Song: Cheery, melodic sweet-sweet-sweet, sweeter-than-sweet; there is some geographical variation
Call: A sharp chip

References

  1. Dunn, Jon; Garrett, Kimball. 1997. A Field Guide to Warblers of North America. Boston: Houghton Mifflin Company. ISBN 9780395783214
  2. Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
  3. eNature

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