Hi, I have silkie white hens and an australorp rooster. Is there a way to tell the sex? All three chicks have 5 toes, one is really small , mostly white. And another has mostly black with white on the chest only and another is light grey with black? All also have tail feathers growing in and wing feathers, they were born feb.8 and 9, about 2 weeks old. Thanks for any thoughts.