Birds of a feather

Meaning:

If we are birds of a feather, we share the same characteristics. If we are birds of a feather, we are similar people and we like to do similar things. We often say that birds of a feather "flock together" or "stick together".

Example sentences:

1. They're birds of a feather.
2. Birds of a feather flock together.
3. Birds of a feather stick together.

Example dialogue:

A: George and Keith went to play tennis this morning.
B: They've been spending a lot of time together lately.
A: Yes, I think it's because both of them are really into tennis.
B: Birds of a feather, eh?

Practice:

Can you think of some people who are birds of a feather?