hey gang,
I've got the same problem with one of my hens, my roommate noticed she was mumbling to herself quietly off on her lonesome while everyone else was eating. she's had mud butt for a few days and i convinced myself that it was due to recent rains. to my horror i looked underneath her and saw her vent was clogged by a yellowish white solid mass!
View attachment 1928521 this picture is after, i cleaned her off with warm water and pulled off all of the questionable feathers. seems like she hadn't been pooping due to clogged booty.
now it's kinda coming out in spurts. i've isolated her and given her some water with a little apple cider vinegar. I've also got antibiotic chick feed i could feed her if that helps, let me know.
this is day one if yall know anything aboot it. i'll keep posting. hopefully this is a good spot for this article .