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Bird, tested and released, turned out to be a hybrid of three species

From ScienceDaily: Scientists have shown that a bird found in Pennsylvania is the offspring of a hybrid warbler mother and a warbler father from an entirely different genus — a combination never recorded before now and which resulted in a three-species hybrid bird. This finding has just been published in the journal Biology Letters. “It’s extremely rare,” explains lead author and Cornell Lab of Ornithology postdoctoral associate David Toews. “The female is a Golden-winged/Blue-winged Warbler hybrid — also called a Brewster’s Warbler. She then mated with a Chestnut-sided Warbler and successfully reproduced.” Well, if all we’ve heard about “species” and “speciation” is true, it shouldn’t just be extremely rare; it should be impossible. Hybridization is common among Golden-winged and Blue-winged Read More ›