Yellow-Rumped Warbler (IMAGE)

University of Massachusetts Amherst

Yellow-Rumped Warbler

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In a recent study, UMass Amherst ecologists found a surprise distribution shift in 17-year mountain bird study. Overall, 82 percent, or nine of the 11 high elevation species showed evidence of shifting downslope, an unexpected and "unprecedented" inconsistency in such shifts, they say. They analyzed 28 bird species such as Blackpoll and Yellow-rumped warblers and measured the elevations of their distribution along 42 mountainsides in the White Mountains of New Hampshire from 1993 to 2009.

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UMass Amherst

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