When a female cowbird is ready to have a baby, she’ll stake out another bird’s nest, wait until the coast is clear, then slip ...

The common cuckoo is a brood parasite, meaning it lays its eggs in other birds’ nests. Therefore, the female does not build her own nest and instead relies on other birds to raise her chicks.

Cowbird mothers abandon their eggs in the nests of other bird species, but the chicks somehow manage to find their flock and ...

Roughly 40% of cuckoo bird species are “brood parasites.” Instead of building its own nest, the cuckoo infiltrates the roosts of other birds and hides its egg among those of the host.

In some birds, such as cuckoo finches, this egg coloration trait is passed from mothers to daughters: Female cuckoo finches mimic the eggs that their mother mimicked.

The cuckoo egg typically hatches first, and the cuckoo hatchling will force unhatched eggs or newly hatched baby birds out of the nest. As the sole survivor, the cuckoo is in a great position to ...

Roughly 40% of cuckoo bird species are “brood parasites.” Instead of building its own nest, the cuckoo infiltrates the roosts of other birds and hides its egg among those of the host.

The yellow-billed cuckoo has remained somewhat of a mystery even to scientists, Rhodes told AL.com. Because they are so ...

It lay eggs in the nests of other birds, leaving them to deal with the surprise offspring. Knowing this rather nasty bit of business makes Harry Lime’s famous speech about Switzerland in “The ...