A bird's nest is the home that it makes to lay its eggs in.

When a bird nests somewhere, it builds a nest and settles there to lay its eggs.

A nest is a home that a group of insects or other creatures make in order to live in and give birth to their young in.

You can refer to a place as your nest when it is your home or where you feel comfortable and relaxed.

You can use nest to refer to a place where something bad is being done or to the people there who are doing it.

If you say that someone is feathering their nest, you mean that they are getting a lot of money out of something, so that they can lead a comfortable life.

When children fly the nest, they leave their parents' home to live on their own.