This could be completely normal, but o just want to be sure. I have 10 bantam Cochin chicks in the brooder all ranging from 3 weeks to 4 days old. All are doing great, but one of the 4 day old chicks doesn't even have any pin feathers coming through. I'm not too worried, but could this mean that she is a rooster? Or just slow feathering? And also she has 5 toes, so I think she is part silkie.