Rooster's rear end is bright red

[Summer98]

This is a dark brahma rooster's rear end. It is very bright red and obviously looks inflamed or something. What is it? How can I treat it? I have two dark brahma's in this pen and they both have this a little bit, but this one is the worst.

 

[seminolewind]

I don't know. Looks like a reaction to something. Any sunburn?

 

[pigninnie]

check them really good for lice. mine had this and it ended up being lice. I powered him with garden and poultry dust from store and I use a pair of pantyhose to put the powder in and it goes where you want it. make sure to power again in 7 days