It gets them away from the burden of raising the chick.
The offspring survives at less effort from the parent(s).
For a bird, that's a win.
Evolution.
They aren't the only birds to do it either - one species of duck even does it.
The brown-headed cowbird does it also.
Nightingale lays eggs in the Crow's Nest.
Female cuckoos lay their eggs in the nests of other birds, which then raise the cuckoo chick as their own.
Cuckoos and cowbirds lay their eggs in other birds' nests, and leave them for the other bird to raise. Weavers and whydahs (African species) also do this.
The cuckoo is the bird which never builds nest. Cuckoos lay their eggs in the nests of other birds and leave the "adopted parents" to raise the cuckoos own chicks.
Usually - it would be called a 'nest'. However - cuckoos don't build their own nest to incubate their eggs - they lay their eggs in the nests of other birds - for the 'foster mother' to incubate the eggs instead.
Usually - it would be called a 'nest'. However - cuckoos don't build their own nest to incubate their eggs - they lay their eggs in the nests of other birds - for the 'foster mother' to incubate the eggs instead.
Usually - it would be called a 'nest'. However - cuckoos don't build their own nest to incubate their eggs - they lay their eggs in the nests of other birds - for the 'foster mother' to incubate the eggs instead.
No. Some birds nest on the ground (curlews), some (woodpeckers) make holes in trees and some lay their eggs in other birds nests (cuckoos).
Cuckoo's don't build nests because they are a parasitic species. When the mother is gone, they lay their own eggs in the nest, and the host mother raises the young cuckoo to adolescence. And that is why cuckoos don't build their own nests.
cow birds lay there eggs in other bird's nests.
They lay 12-24 eggs in a season and lay them in other bird's nests even if there are other bird's young in there. the Cuckoo's put the other bird's Young in other Bird's nests.
Cuckoos are medium to large-sized birds that are found predominantly in Europe, Asia, Africa, and Australia. They are known for their distinctive call and their unique breeding behavior, where they lay their eggs in the nests of other bird species for them to raise.