Some bird species form flocks with other species. Learn about the scientific explanations for why this happens.
Brood parasitism is a strange and fascinating breeding strategy seen in several hundred bird species.
Migration is one of the most amazing things about birds— their seemingly miraculous feats of orientation and endurance on long-distance, annual flights.
When multiple bird species need the same limited resource—whether its food, nesting habitat, or something else—there’s a good chance those species are competing with each other.