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Why Do Birds Make So Many Different Sounds? A New Study Gets at the Underlying Factors

By Elise Mahon Birds make sounds to communicate, whether to find a potential mate, ward off predators, or just sing for pleasure.  But the conditions that contribute to the immense diversity of the sounds they make are not well understood. Researchers at the University of Wisconsin–Madison have conducted the first-ever global study of the factors […]

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male kirtlands warbler

Drier Winter Habitat Impacts Warblers’ Ability to Survive Migration

A new study from researchers at the Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI) shows environmental conditions in migratory birds’ winter homes carry over to affect their ability to survive spring migration and the breeding season.  While scientists have long known that the quality of winter, or non-breeding, habitat influences migratory birds’ migration timing and reproductive

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