Every spring and fall, in North America, weather radar captures something besides the actual weather. As large flocks of ...

Something subtle has been happening in the skies above North America for decades. The V-formations of geese, the first flutter of warblers through the backyard, the return of the robin to the front ...

The unprecedented extent of highly pathogenic avian influenza coincides with intensifying global climate changes that alter host ecology and physiology, and could impact virus evolution and dynamics.

Spring migrations runs between March 1 and June 15. Artificial lights and glass windows pose significant threats to migrating birds. Turning off unnecessary lights and adding patterns to windows can ...

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