I have a brooder with an EE, a BR and 5 blue silkie chicks. One is half the size of the other silkies and is constantly chirping. It also has a protruding rectum that cannot stay in. I've pushed it in again and again, but I think is has something to do with the fact that it doesn't have much of a backside. When I push on the vent I can feel the end of it's backbone sticking out on the very top of the vent. It also seems to be blocked up because it can't seem to poo, just excrete white liquid that is coating it's backside. It also looks swollen. Does anyone have any advice? I don't want to have to put it down, but it looks like I have no other option.