I'm trying to be detailed so it might be a little graphic, but not too bad. I have a 4 week old light brahma who around a week ago started just screaming high pitched noises, so loud I could hear them in the garage from inside my house. Well, I noticed the anus of the chicken was sticking out. I was afraid she was clogged up but while taking pictures of the problem she took a poop. So she is not backed up, and if she was I think it would have killed her by now. When the bird screams, the anus actually sticks out more, then goes back when shes done. She doesn't scream all the time, it's just every now and again and she does it for awhile then stops. One thing that really concerns me is that sometimes when she does it the other birds will actually peck at her rear. I ran warm water over her back side and tried to massage it with my finger to see if that would help, it didn't really seem to do a whole lot but it cleaned her up some. Here's some pictures, any ideas would be much appreciated.