Quick answer: the usual suspects
In much of North America, the bird singing in the dark is most often a northern mockingbird. Other common night voices include the American robin (especially in lit-up areas), owls, and in some regions nightjars such as the eastern whip-poor-will. Near wetlands, herons and rails may call after dark. In Europe, the nightingale is the best-known night singer, and the European robin also sings at night in some cities.
Songbirds that sing after dark
Northern mockingbird. Mockingbirds repeat phrases, often in sets, and mimic other birds and sounds. Unmated males are widely reported to sing through the night in spring and early summer, probably to attract a mate. If the song is a long string of varied phrases, each repeated several times, a mockingbird is a good guess.
American robin. Robins may sing very early, well before dawn, or late in the evening. Artificial light and urban noise are often suggested as triggers. Robin song is a rolling, caroling phrase of short notes.
Common nightingale (Europe, Asia and Africa) and European robin. The nightingale is famous for its rich, varied song. European robins, which hold territory in winter too, are known to sing under street lighting.
Other songbirds, including some wrens and sparrows, occasionally sing at night. Bright moons and lights can prompt this.
Birds that are truly nocturnal
- Great horned owl and barred owl: deep hoots. Barred owls are often described as sounding like “who cooks for you.”
- Eastern and western screech-owls: soft trills and whinnying calls.
- Eastern whip-poor-will, chuck-will’s-widow and common poorwill: nightjars that repeat their names in a steady rhythm after dusk. They nest on the ground and are rarely seen.
- Eurasian nightjar: a churring, trilling song heard at dusk and at night in Europe.
Owls call more commonly in late winter, when many species are establishing territories and pairing, which is why winter nights can be noisy. For more on winter bird behavior, see our guide to winter birds.
Marsh and water birds
Near ponds, rivers and marshes, you may hear:
- Black-crowned night-heron: a harsh, barking “quawk,” often in flight.
- Virginia rail and sora: secretive marsh birds with grunting, piping or whinnying calls.
Migrating birds also call as they fly over at night. Those thin “tseep” notes overhead in spring and fall are often flight calls, not songs.
Why birds sing at night
Several reasons are commonly given, and more than one may apply:
- Attracting a mate. Unpaired males, especially mockingbirds, sing more.
- Defending territory. Owls and nightjars use calls to mark boundaries.
- Light pollution. Streetlights and other artificial light can make some birds start singing earlier or keep singing later.
- Less noise at night. In cities, a quieter night may make the song carry farther.
- Moonlight. Bright moons can prompt some species to sing.
- Migration. Some birds call as they pass overhead.
What a bird at 2am or 3am usually means
A bird singing in the middle of the night is typically a male that is looking for a mate, defending a territory, or reacting to artificial light. It does not usually signal that anything is wrong. In spring and early summer this is common, and the best candidate in many areas is a mockingbird. If you hear hooting, you are probably hearing an owl rather than a songbird.
How to identify a night singer
- Listen to the pattern. Repeated, varied phrases suggest a mockingbird; a steady, rhythmic repeat suggests a nightjar; low hoots suggest an owl.
- Note the season and location. Whip-poor-wills are mainly in eastern woodlands in summer; mockingbirds are widespread in the US.
- Record it. A short phone recording lets you compare with sound libraries or an identification app.
- Check range maps and sound libraries such as All About Birds and Xeno-canto.
What you can do if it keeps you awake
- Close windows or use a fan or white noise.
- Turn off or shield outdoor lights. If a light seems to be the trigger, this may help.
- Be patient. Mockingbirds often stop singing once they find a mate, usually within a few weeks.
- Avoid trying to move or disturb the bird. Most songbirds are protected in the US and elsewhere.