Guianan Cock-of-the-rock (IMAGE)

University of Michigan

Guianan Cock-of-the-rock

Caption

Guianan Cock-of-the-rock (Rupicola rupicola). Sentier des Coqs-de-Roche, French Guiana. University of Michigan researchers found that birds in the group Passeriformes evolved in rapid bursts that coincided with climatic shifts.

Credit

Cody Limber/Macaulay Library

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