While it’s normal to spot nighttime creatures like mosquitoes or bats, most birds—apart from owls—tend to stay out of sight once the sun goes down. Curious about where they go and whether they ...

A few weeks ago when I was out cycling with some friends, we saw a few birds who looked like they were sleeping. Someone asked me what they were doing, and I said they were resting or sleeping but I'd ...

This study was supported by a student grant from the Australasian Society for the Study of Animal Behaviour and a doctoral scholarship from the University of Auckland. Kristal Cain does not work for, ...

Every animal with a brain needs sleep—and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and ...