Tracking bald eagle migrations for several years revealed that the birds begin to fly north in the summer and fly south again in the winter. While these migratory tendencies are associated with ...

Researchers found drier winters impact the likelihood of Kirtland’s warblers surviving migration and their ability to survive the breeding season. Credit: Nathan W. Cooper, Smithsonian’s National Zoo ...

Southern Yellow-billed Hornbills struggled to breed at high temperatures. Nicholas B. Pattinson For birds in arid zones, rising temperatures pose a significant problem. Birds in these dry zones ...

A new study shows environmental conditions in migratory birds' winter homes carry over to affect their ability to survive spring migration and the breeding season. A new study from researchers at the ...