Live with vultures, become a vulture; live with crows, become a crow

A rooster crows only when it sees the light. Put him in the dark and he'll never crow. I have seen the light and I'm crowing.

Crows are never the whiter for washing themselves

If you like things easy, you'll have difficulties; if you like problems, you'll succeed

If you like things easy, you'll have difficulties; if you like problems, you'll succeed

Crows bewail the dead sheep, and then eat them