The connection between bird diet and skull shape is surprisingly weak for most species according to a new study led by UCL and the Natural History Museum, rewriting our understanding of how ecosystems influence evolution. […]

Twenty-five years into a 100-year federal strategy to protect older forests in the Pacific Northwest, forest losses to wildfire are up and declines in bird populations have not been reversed, new research shows. […]

Most hummingbirds have bills and tongues exquisitely designed to slip inside a flower, lap up nectar and squeeze every last drop of precious sugar water from their tongue to fuel their frenetic lifestyle. […]

Willow tits (Poecile montanus) generally reside in one territorial area throughout their adult lives. But brutal winters in the north kill off many of them. They aren't able to manage well on their own, and storing seeds in the autumn is not always enough. For the young of the year, it is absolutely vital to find a flock to spend the winter with. Juvenile birds also have to try to become high-ranking members within the flock. […]

Earlier this year, a heartbreaking drama played out near Vancouver Island. An endangered orca named J35 carried her dead calf for weeks in an apparent mourning ritual captivating onlookers around the world. […]