Golden-winged, blue-winged warblers in the USA


This video from the USA says about itself:

11 June 2011

Blue winged, Golden winged Warbler and Hybrids in Connecticut. ©JimZipp.com

Note that the Blue-winged has yellowish wingbars and the Golden-winged sings a Blue-winged song. Lots of interbreeding in this area and Golden-winged Warblers are rarer every year.

From the Cornell Lab of Ornithology in the USA:

Mixed-wing Warblers: Differences Are Only Feather Deep

In 1835 John James Audubon suspected that Golden-winged Warblers and Blue-winged Warblers might be the same species. More than 180 years later, the most advanced methods of genetic analysis show Audubon was on to something.

A team led by scientists from the Cornell Lab found that, genetically speaking, Golden-winged and Blue-winged warblers are 99.97 percent alike.

Will this affect the conservation strategy for Golden-winged Warblers, one of the fastest-declining songbirds in North America? Read our Living Bird article and find out.

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