One of my Ameraucanas (1 1/2 ys old) is losing feathers and her comb is pale pink, instead of vibrant like the other Ameraucanas, and almost looks like she has tine white spots on her comb. I thought maybe she's starting to molt, but wondering if I should be concerned, since none of my other chickens seem to be losing feathers like that. I'm a fairly new chicken owner or at least this is my first time raising a flock to this old yet Thanks!