birds of a feather (flock together)informalSAME used to say that two or more people have similar attitudes, beliefs etc 物以类聚,人以群分;有相同志趣[信念等]的人(聚在一起)birds of a feather (flock together)• He figured I had a hustle of my own going and that made us birds of a feather.
→ birds of a feather (flock together) at bird(3)