Cuckoos that lay their eggs in the nest of a magpie so that their chicks can be raised by the latter better hope that their young are not raised together with other magpies. The chances of cuckoo ...

Perhaps you can enlighten me about cuckoos and their egg-laying behavior. They can see into the future like no soothsayer ever could. It seems impossible to lay similar eggs into a nest the eggs of ...

The great spotted cuckoo is a parasitic bird that plops its eggs in nests of other birds, so others can care for its chicks. Those chicks might aid the caretaker bird by helping to repel predators.