How and Where Ducks Sleep

There are over 120–170 species of ducks that belong to the family Anatidae, along with geese and swans. They are distributed globally across all continents except Antarctica. Ducks are found in wetlands, coastal areas, and around large lakes. While many ducks are active during the day, others are highly adaptable and can be semi-nocturnal, feeding, flying, and socializing at night, particularly during full moons and migration. Ducks are social creatures that live in groups called flocks or rafts. They are intelligent, communicative animals that prefer to live, forage, and sleep near other ducks, which begs the question: Where do they slumber? Continue reading to discover everything you need to know about how and where ducks sleep.

Where Do Ducks Sleep?

Ducks, which are categorized as dabbling (puddle) ducks, diving ducks, or sea ducks, are not picky about where they sleep. Water helps protect ducks from predators, while dry land offers more comfortable conditions during cold or windy weather.

Most dabbling ducks, such as mallards (Anas platyrhynchos), are highly adaptable and can sleep either while floating on water or resting on land.

Diving ducks, like canvasbacks (Aythya valisineria) and ruddy ducks (Oxyura jamaicensis), prefer to sleep while floating on water, which helps protect them from land-based predators. However, these ducks may also rest on banks, sandbars, or mudflats to have an open view of their surroundings, especially during the day.

Sea ducks, including the common eider (Somateria mollissima), often sleep while floating in large flocks on the ocean to avoid land predators, but they will roost on land during nesting season.

How Do Ducks Sleep?

Ducks frequently sleep in a row as a safety precaution. The ducks on the ends of the line serve as guards, watching for predators. Ducks are capable of unihemispheric slow-wave sleep (USWS), a survival technique that allows them to rest one half (hemisphere) of their brain while keeping the other half awake and alert, with one eye open to monitor for predators. 

In a group, ducks often take turns keeping an eye open to protect the rest of the flock. Ducks positioned at the edge of the flock are significantly more likely to use USWS than those in the center.

When in a completely safe environment, ducks can shut down both sides of their brain for deeper, more conventional sleep. However, they usually take multiple short naps throughout the day instead of sleeping for long, uninterrupted periods.

Baby Ducks

Ducklings, like their parents, can sleep either floating on water or resting on dry land. Ducklings typically sleep with their parents until they are about 6 to 8 weeks old, after which they become more independent

Ducks need 10.8 hours of sleep per day. They often nap on land, following routines of foraging, bathing, and preening.

Ducklings require frequent periods of sleep throughout the day to facilitate their growth, often napping for short intervals between periods of activity.