I have 16 chickens 12 girls and 4 boys. They are separated and have been for months. The boys are silkies an seemed stressed so we separated them. About 2 weeks ago I changed their food to layer. This is when I noticed some of the combs being droopy. All the girls comb are red and look fine just droopy. I read that some breeds have combs that do that. Some of the sex links comb are drooping and not the others. Our Buff Orpington and Buff Brahma's have rose combs and no droop. One of our Silkies has a single comb and is very droopy. I thought that it was getting pecked at but no blood or sores. I did notice a little white area on it. My husband said he was fine. Other than some of the combs being droopy they eat, drink, poop and play everyday. They are 5 1/2 month old. Should I be concerned?