Birds of a feather flock together

Cultural  

1. People are attracted to others who are like themselves.

---

birds of a feather (flock together) Idioms  

1. Individuals of like character, taste, or background (tend to stay together), as in The members of the club had no trouble selecting their yearly outing—they're all birds of a feather. The idea of like seeks like dates from ancient Greek times, and “Birds dwell with their kind” was quoted in the apocryphal book of Ecclesiasticus. The full saying in English, Birds of a feather flock together, was first recorded in 1545.

---

Example Sentences

It was Plato who warned "birds of a feather flock together".

From BBC • Jul. 6, 2021

"My momma always said birds of a feather flock together," Ross said.

From Fox News • Apr. 2, 2019

There is concern that the jury may implicitly conclude that birds of a feather flock together, so a case against one trader means they are all corrupt — or worse.

From New York Times • May 1, 2017

“We know that birds of a feather flock together, so it’s a good thing to make vaccinating parents more visible.”

From Time • Apr. 15, 2013

The old proverb of "birds of a feather flock together," is certainly a true one, and in this case it was once more verified.

From The Hedge School; The Midnight Mass; The Donagh Traits And Stories Of The Irish Peasantry, The Works of William Carleton, Volume Three by Carleton, William