Its a kingfisher :D
Bird nests are built mostly in spring or summer.
There exists various nests on that tree. This is a sentence containing the word nests.
no
eagle
No, there is a huge variety of different nests in the Bird world.
oak trees
Mongoose either steal the eggs from bird nests or hunt.Mongoose either steal the eggs from bird nests or hunt.
A bird
penguins don't build nests
Use them on a Pestle and Mortar.
Mocking birds do not build nests. They lay their eggs in other bird's nests.