Does a cuckoo know it's a cuckoo? The answer is more difficult than you might think, explains Richard Pallardy ...

“The Cuckoo” is a silent nature film from the 1930s that examines the unusual and somewhat ruthless reproductive behavior of the cuckoo bird. The film documents how cuckoos lay their eggs in other ...

A George Mason University (GMU) biologist proposed an alternate theory of how the common cuckoo bird mimics other birds’ egg ...

European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation. Bright blue, white, greenish, ...

An adult coot can recognize its own chicks and will attack a parasitic chick that hatches in its nest. Photo by B. Lyon. The American coot is a drab, seemingly unremarkable marsh bird common ...

Coots, the Rodney Dangerfields of the bird world, just might start to get some respect as a result of a new study showing that these common marsh birds are able to recognize and count their own eggs, ...