The origins of tanagers, warblers, and sparrows are coming into focus
10,000 Birds
JANUARY 25, 2015
'A new paper out this month attempts to paint the most comprehensive picture yet of the origins and diversification of the American sparrows, wood-warblers, blackbirds, cardinals, tanagers, and their kin, an enormous group of birds more than 800 species strong. (Photo: Golden-crowned Tanager , Iridosornis rufivertex , in Andean Ecuador © David J.
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