The origins of tanagers, warblers, and sparrows are coming into focus
10,000 Birds
JANUARY 25, 2015
The authors argue that most major groups, including the sparrows, wood-warblers, blackbirds, and cardinals then diversified in North America and subsequently colonized South America in a series of overwater (before the Isthmus of Panama had formed) or overland dispersal events. The paper is by leading researchers F.
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