Our chicks are about 4 days old and I am wondering if I can sex them now. They are getting the little wing feathers now. They all look pretty black to me. 2 of them have a little bit bigger yellow spot on their heads. Also, same two have white wing feathers and the other 3 have black ones with a touch of white. Can you tell by the feathers? Or is it just the darker black to lighter black (female to male?) Thanks in advance!! Praying for all pullets. lol.