wczesny ptaszek in inglese:

I am really an early bird. I work best in the mornings but need to go to bed early as well.

An early bird is someon who gets up early.

What an early bird!

When I'm going somewhere, I try not to be late. On the other hand I don't like to be an early bird either.

Andy gets to work for 6am, he's a real early bird.