My pullet has a naked bum?

[Gundawg]

Why does my pullet have a naked bum? She is about 7 months old and the bald spot has been getting bigger. I am not sure if one of the other chickens is doing this we have a total of 18 birds one is a Cockerel the same age and one is an older hen but the older hen is a loner so I know it is not her doing this I never see them fighting or anything and all the rest of them have their bum feathers.

 

[FridayYet]

I'm guessing you have a feather picker, and it's probably being done while on the roost.

 

[sourland]

I agree with Friday that 'someone' is probably feather plucking/eating.

 

[Gundawg]

That could be a I have a Buff Orphington I have seen peck at the other ones bums but none of the rest of them are missing a bunch of feathers like this one.

 

[itspebbl]

She may be starting to molt. I have a hen who lost a good many feathers there.

 

[CWP1966]

I have some the same way. Hatched this spring. Marans and Barred Rocks look like that, but not as bad. Orpingtons and White Rocks look fine. No mites or lice. I have different level roost. The whites and buffs usually stay on the lower roost. Maybe they are eating feathers around the vent. My Barred rooster stays up high and his butt looks a little bad too. No feathers on the floor. Didn't think they would molt this first year. Another coop/run I have has a white crested black polish rooster in there with 12 mostly larger hens. His head stays bald in the back, Still has his dread locks.