We recently picked up 4 baby chicks from our local Tractor Supply. Three look normal with long beautiful wing, feathers, but one's wing feathers don't really seem to be coming in. She's a tiny bit smaller than the others so at first I thought she was just a little younger, but it's been a week and she is just doesn't seem to be developing as fast. I'm hoping she's just a different breed that doesn't grow feathers the same as the others. Does anyone have any idea? Thanks!