Cuckoos sneak their eggs into other birds’ nests and copy egg colors to avoid detection. This study explains how they adjust to many hosts.

RIVERHEAD, Long Island (WCBS) -- Birders are going cuckoo for a rare sight on Long Island. The common cuckoo bird has been spotted only four times in U.S. history in the lower 48 states, experts say.

For two million years African cuckoo finches have been tricking other birds into raising their young by mimicking the colour of their eggs, but new research suggests the tables may be turning in this ...

LONDON -- Britain's cuckoo bird, known for its distinctive call, is in danger of extinction along with 51 other species, the Royal Society for the Protection of Birds said in a new report Thursday. It ...

Common cuckoo lays eggs in other birds' nests and for these birds, recognizing one's own eggs can be a matter of life or death. Common cuckoo lays eggs in other birds' nests and for these birds, ...

JOHNSTON — The common cuckoo is such a rare sight in this part of the world that it doesn’t show up in the Cornell Lab of Ornithology’s guide to birds in North America. The Audubon Society’s handbook ...

A cuckoo bird named PJ just broke an impressive record: He traveled more than 50,000 miles (80,000 kilometers) in the past five years while migrating to and from the U.K. To better understand why ...

It’s hard to get inside another human’s head – let alone a member of a different species – but that’s where physics and computer models help. Liz Kalaugher reports how researchers are visualizing what ...

Maybe these finches aren’t so cuckoo after all. The African cuckoo finch is a notorious trickster, short-cutting the chores of parenthood by hiding its eggs in the nest of the African tawny-flanked ...