I have five hens and one rooster. I noticed today that the hens are losing their feathers/fluff around their vent. They are also a bit red around their vent. I noticed it on two of them because it is pretty bad (don't know how i didn't realize it before) and then after examining the others, they all seem to be losing feathers in the same area. I don't think the rooster is having the same problems..however he won't let me pick him up without a fight..... They have been in the coop more than usual this week as I have not been home as usual. They are usually free ranging most of the day. However, they are been locked in their coop for hours at a time this week I looked at their rear for mites/lice and didn't see anything crawling. Could they be picking feathers out of boredom from being locked up too much? Could the rooster be mating too much? Should I treat it like it may be mites/lice? Any info. would be greatly appreciated!