I have 3 little chicks, 2 weeks old. These three are all the same breed and all the same age. One of them is just not getting her feathers in the way the others are (even the other breeds, which are younger are developing faster) she is otherwise healthy, eats and drinks as much as other girls, maybe more. She's always curious, when I come to let them out or just to check on them she's the first one to greet me, she thinks she's in charge of the other girls even thought she's still civered in chicken fluff. Is this just a runt?? It just seems weird to me that in all other areas she seems just fine.