According to bird experts Kenn and Kimberly Kaufman, much about bird flying is dependent on the species, season, and what else the bird is doing. Songbirds that feed on insects vary in the elevation ...

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 ...

ATLANTA — Take one morning this week to sit outside and enjoy your morning cup of coffee or tea. If you listen and reflect, you'll hear a chorus of songs. Some of those songs may be from year-round ...

Like gas leaf blowers early in the morning or the hum of an air conditioner, it's a sound that urban and suburban residents have unconsciously adapted to: the bang of a bird crashing into a window or ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution, researchers ...