Надобно прокоментировать эту поговорку на англиёском: Birds of a feather flock

"Birds of a feather flock together" means, that people, who are similar to each other,     usually spend  a lot of time together.
 ( similar people go to the same places and do the same things together..ect..ect )

In this proverb to be told about those people who are very similar (on character or on other marks)