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

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

Clever birds figure out how to trick others into raising their kids A common Cuckoo chick in Reed Wablers nest waits to be fed with its mouth wide open, in this undated file photo. Getty Images — ...

Perhaps the most famous nest hijacker in the bird world, the common cuckoo has even given rise to the phrase “cuckooing.” A female cuckoo carefully watches her host bird, usually small songbirds like ...