We watched our 3 dogs calmly walking around behind the cat just waiting for him to drop them a "treat". When the cat was new and in the house we were concerned about his bowel movements... he didn't seem to have any or was he depositing them else where? Then we realized the dogs were cleaning the litter box for us, ugh it was gross!! The dog doo and the chickens never crossed our minds. The pony manure, however, get either eaten by the dogs or racked in by the chickens.