Avian sleep

Birds have special ways of resting that help them stay safe and healthy. Even when their eyes look open, their brains can still be resting. This helps them wake up quickly if they notice something scary, like a predator nearby.

Different birds need different amounts of rest. For example, pectoral sandpipers fly very long distances from the Southern Hemisphere to the Arctic Circle to find friends. During this time, they don’t get much chance to rest.

Birds, like humans, have two types of rest: one that helps with movement and memory, and another that gives the brain a deep rest. Some birds can rest one half of their brain while the other half stays alert. This helps keep them safe while they rest. They can even keep one eye open.

Birds also choose special places to rest. They like to rest higher up to feel safer. Light from buildings at night can make it hard for birds to rest well, so dark, quiet nights are important for them to stay healthy.