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 ...

(via MinuteEarth) In 1973, an airliner struck a bird called a Rüppell's griffon vulture – which, on its own, isn't that weird; planes hit birds pretty regularly during takeoffs and landings. But this ...

Every year, billions of birds undertake extraordinary migrations, crossing vast deserts and open seas with no place to stop, feed, or rest. A new international study published in iScience by a ...

Changes in the number, shape, efficiency and interconnectedness of organelles in the cells of flight muscles provide extra energy for birds’ continent-spanning feats. Weighing in at a single ounce, ...

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 study in the journal Evolution, researchers ...