As he flings his outstretched arms toward the sky, Chan Quach’s six royal blue and fire-engine red macaws furiously pump their wings as they take flight on one of his many popular Instagram reels.

Researchers examined dozens of bird species in museum collections looking for differences in the feathers and bodies between birds that can fly and birds that can't. They found that when birds evolve ...

THOSE WHO WAIT. OR DOES IT? WE’VE SEEN PRETTY MONUMENTAL DECLINES, PARTICULARLY IN MIGRANT BIRDS AND BIRDS THAT GO DOWN TO THE NEOTROPICS, THAT NEST IN THE BOREAL FORESTS OF CANADA. AMONG THE EXPERTS ...