I bought a "baker's dozen" chicks last week thinking all was well until a couple got a slight bit of poop on their down. No pasty butt in any of the 13, but that slight discoloration of poo allowed the vent pecking to commence! I'm glad I checked on them when I did because they were beginning to bleed! I've got them isolated so they can start healing, but then I noticed another chick getting pecked, upon examination, same thing, but I got her removed before any damage!!! Now I've got a total of 5 isolated [ along with a disrespected runt] in their own brooder ( that I now refer to as "hospital"). Their vents are still clear and healing, but I was wondering how long to wait and/or if I washed the poop and returned them to the flock, that the pecking would start again?