I raise old english chickens and reciently had a hen hatch some chicks (4) they are going on 4wks old but my hen keeps pecking at there rear ends (2 of the 4 chicks) until they become bloody! I pulled the chicks from her and put them (all 4) in my brooder, I have 2 of them that Im not sure they are going to make it. There poo is real runny mixed with a little blood, I have been keeping there little bottoms clean but there not looking well, they act and weekly not moving to much, one of the two is drinking and eating well but the other just started drinking but not eating, Im sure I might loose that one. I would like to know if it might be my hen that was the root cause or was she trying to keep them clean and got carried away. One thing is is for sure Im not going to let that hen set again. (to be honst I was so made at the hen this morning she almost became my dinner)