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 ...

Some birds migrate thousands of miles every autumn. How exactly do they manage it? Scientists built a flight chamber to find out. Some birds migrate thousands of miles every autumn. How exactly do ...