牛は牛連れ馬は馬連れ うしはうしづれうまはうまづれ Meanings Expression birds of a feather flock together; don't mix your horses with your cows Kanji 牛 cow. Read as うし. 連 link. Read as づれ. 馬 horse. Read as うま. Word lists Proverbs Jinuma: Japanese Dictionary · Word lists