Hey guys! I have three 8-week old Sapphire Gem pullets (four in total) and I'm not sure about the gender of one of them. It has been growing these small, weird feathers on top of its head ever since it was a couple of weeks old. They have continued to grow to this day. None of the others have grown anything like it. Two of them (including the one with the feathers on top of its head) have yellow feet and the other two have black feet. They all have the same color. Any ideas?