I have Black Sex Link Chickens, and 2 of my younger chickens are moulting. I thought this was kind of wierd, but let it go. The one thing that they are differant on is instead of just loosing feathers on their back and chest, their wings are loosing feathers too. Is this normal? I checked them for mites and everything obvious I can think of. But I am new to this and unsure of what is normal and what is not. any help apreciated.