When my chicks first arrived I noticed 2 EE s rift away from their muffs. I assumed the chick in question was lagging behind because I know nothing about chickens. Anyway, a little over 2 weeks later and still no muff. As I was taking these photos I noticed the shank color difference. Inside the brooder they look the same. So I checked the combs too and they look like a single and a pea. The lighter one is the EE and the darker is one I hope someone can pinpoint.