Does staying cooped up inside with your kids sometimes drive you up the wall? Take comfort in the bird that does it year after year — the hornbill. Each breeding season, a female hornbill plasters herself into her nest cavity, leaving only a thin slot for ventilation and food. She stays…

Polar bears use Arctic sea ice to hunt seals, but a warming Arctic means the bears have to return to land earlier in the year. Their arrival coincides with droves of birds sitting on eggs. A single clutch of eggs isn’t enough to satisfy a bear, so they go from nest to nest, sometimes…

Greater Anis make communal nests in which two or more pairs share responsibilities. But that doesn’t mean they cooperate with their neighbors. Researchers in Panama captured anis on camera tossing fake eggs out of artificial nests. Although scientists haven’t yet seen anis destroy real…

Birds are ideal hosts for various viruses: they gather in large flocks, often carry viruses without any symptoms, and their migrations connect all parts of the world. But as far as SARS-CoV-2, the kind of coronavirus that causes COVID-19 in humans, it seems there’s no need to worry. In a…