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(Difference between revisions)
Revision as of 15:14, 1 March 2011
Includes: Mangrove Warbler
A widespread New World warbler, with great geographical variation.
Some have pale gray wash to plumage (southwestern US)
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.
Sometimes split in two species, American Yellow Warbler (Dendroica aestiva) and Mangrove Warbler (Dendroica petechia).
Consists of as many as 43 subspecies.
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.
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.
Song: Cheery, melodic sweet-sweet-sweet, sweeter-than-sweet; there is some geographical variation