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Combined count data reveals shifts in hawks' migratory behavior


PhysOrg

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Bird species' distributions and migratory behavior are shifting in response to changes in climate and land-use, but surveys that focus on a particular season can cause scientists to miss trends in the bigger picture. A new study from The Condor: Ornithological Applications tackles this problem by combining Red-tailed Hawk counts from both migration and winter, and finds that while the hawks' numbers are stable overall, their migratory behavior is undergoing a change.

 

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