An international team of scientists studied 261 bird species across 69 families. They wanted to understand what comes first: ...

Researchers say environmental changes are prompting shifts in animal behavior, with birds often showing the earliest signs. Studies highlight that altered activity patterns, habitat use, and feeding ...

Researchers are documenting notable shifts in bird migration and behavior across the U.S., with some species traveling in unexpected directions or altering activity times. Factors range from climate ...