CASTLE DANGER -- A quick flitter in the treetops, then a chirp or short song is all it takes to get Anna Peterson to make a mark on her clipboard. She pauses on her walk through the woods, checks her ...

Every spring, migratory birds arrive in the continental United States from south and central America to breed. But precisely when they arrive each spring varies from year to year. In a NASA-led study ...

When the song pauses in a game of musical chairs, everyone jostles for one of the remaining seats. Bird migration today is much the same. When it’s time for a break in their biannual travels, ...

Many migratory birds die each year flying into the blades of our wind farms. Weather radar data is showing us how we can be nicer to our skyfaring friends. Norway is sacred ground for nature lovers.

With the use of autonomous recording units, or ARUs, scientists can listen to bird frequencies to understand their behaviors.

I looked up on the last day of July at the sound of purple martins, and instead of a swirling flock of feeding birds, I saw a line of the giant swallows flying south toward their winter home, perhaps ...

Platforms such as iNaturalist and eBird encourage people to observe and document nature, but how accurate is the ecological data that they collect? In a new study published in Citizen Science: Theory ...

Every year, approximately 7 million birds migrate through the city of Chicago as they travel the Mississippi Flyaway, one of the primary migration routes for North American birds. However, for these ...

Bird strikes with aircraft pose a serious threat to human safety. The problem dates back to the early days of aviation, with the first death of a pilot recorded in 1912 when an aircraft crashed into ...