All under a year old. I suspect it is from some of them not wanting to roost...they prefer to sit ON the darn poop board instead of hanging on the roost. :| I am sure if I shoved the poop board every single day it would likely almost take care of the problem.Poopy Orp Butt, that is one of the funniest things I have ever read!
How old? Older ones it is a sign of parasites.
