My 4 month old Wyandotte pullet has a swollen vent and i also realized there is some dried blood there(maybe her trying to clean it and she got it irritated). She isn't lethargic but not as active as before and she eats and drinks properly. I tried looking for some parasites but i didn't see anything. The weird thing about it, it happened overnight. Please, if anyone knows something I would appreciate it. I feel bad for her and I want to do the best i can for her .