One of my baby chicks (2-3weeks old now) has much LESS developed tail feathers than the others. The others have rather longer and fluffier tail feathers but this one has a smaller (but fatter) tail with tiny little tail feathers she? had when she was less than a week old (little tiny feathers that are not developing). I am thinking maybe it's a boy! This chick is an EE. Are there any other signs/traits to look out for based on your prior experience? Perhaps the way the tail is held? The way the back slopes? Something? Anything?