Cowbirds. They lay their eggs in other birds' nests, creating a hazard for the chicks in the nest, because cowbird chicks are usually stronger than the birds in the nest they hatch in. The parents just try to feed them all and the cowbird gets the most attention.
The cuckoo
When bird find mate they will build a nest
The doctor bird uses silk from the spider web to build their nest.
cuckoo i s called lazy bird, because it do not build it's own nest.
There is no such bee species.
in a tree
That's a bird-so a bird best, if you mean how do they build-specify
female
penguins don't build nests
A baby learns it from its mother while it is young as it learns everything else. A bird building a nest is an instinctive behavior they are not taught how to do it they just know how to do it. The nest for chicks is prepared before they are born and the chicks leave before more chicks are born so they don't have the opportunity to learn in the sense humans learn at school, how to build a nest.
Yes they can build there own nest but some live in hollows in trees
The Cuckoo is notorious for laying an egg in another bird's nest, leaving the host bird to raise the cuckoo chick. Once the cuckoo chick hatches, it instinctively pushes any unhatched eggs and chicks out of the nest, leaving the cuckoo chick the sole occupant.
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