Some animals don't have nests because they have adapted to their environment in other ways like a pack of wolves live in a cave, can you imagine a pack of wolves in a nest? No because that would mean different adaptations to build a nest with such as some thing to carry matterials back with or something to build it with, Wolves do not have these adaptations they are adapted to caves instead.
Not all bird species build nests. Some species lay their eggs directly on the ground or rocky ledges.
KoKo bird dont know to build the nest
Some birds do not build nest's .why?
So their nest doesnt get attacked
why do all birds build nest
Other Birds
Sometimes they can make out where a nest came from or if it is man-made or not. They will probably live there if they don't have a choice, but some birds would rather build their own nest.
prior to
A kind of bird that lives in the Amazon decorates its nest with small blue pebbles and some birds build their nests on top of rocks as support.
Many birds make their nest on a tree such as a Woodpecker, Nuthatch and a Tree Creeper.
The weaver birds build their nests in large colonies, and are ball shaped, with the opening to the nest at the bottom.
Themselves - it's a natural thing all birds do
Probably none. Birds generally build their own nests. It makes them feel safe.
cause they are really high