I have had Call ducks in the past. My husband bought me two Pekin chicks four months ago. We assumed we had one boy and one girl based on the size difference. The boy is a little bigger. About 3 weeks ago the boy, Cheese, got his drake feather. This week Quackers, who we assumed was a girl, developed a curled tail feather. It does not stand up and curl like you would expect from a drake feather but lays on it's side. Maybe this is just wishful thinking but is there any chance we still have a girl?