I just had these wild chicks given to me and all are doing well with the exception of one. This chick is noticeably smaller then the others and I have had to make an effort to get food in it. Today I noticed it has a problem with its vent. I thought it was bleeding at first but it looks like its swollen or possibly the rectum or anus from the inside is sticking outside the vent? Im not sure if its a deformity or an injury perhaps the other chicks have been pecking it or pulled something out. Should I leave it, try and push it back in, put something on it, What do I do?