We had to put one chicken down last weekend due to being pecked nearly to death by the other chickens. We noticed she had something hanging out of her vent and thought it was intestines. Now, we found another Buff Cochin with the same thing hanging out, but this time we noticed it early enough that we separated her before she got pecked too bad. We have her inside in a crate. Here is a pic (graphic) - is this prolapse vent?