IMO, I have been having a string of bad luck with my batch of chick. Many people in chat can confirm that fact. My chicks are all a week and three(3)days today. My newest problem with my RIR chicks now is pecking. Last night friends came over to see the chicks. I showed them off for a few minutes, they all looked great. An hour later I checked on the chicks and one was being chased and pecked. Its poor little tail and vent area had been pecked down to a bloody stump. I of course removed the poor chick from the rest. I put neosporin on its wound, made it its own box gave it a light, food and water. It seem to being ok considering.... Now while I was getting it box set up I kept an eye on the rir's, with in 10 minutes I see another(2nd) getting its rear end and feathers plucked, it bleeds slightly. I remove that one, finish the first box. Within five(5) minutes there is a 3rd who just got its tail pecked and a drop of blood shows up and its then pecked by several others. I remove it from the rest of the flock. While working on 2nd box trying to figure out a light for it, there is yet a 4th rir chick having its tail feathers pulled out drawing blood. It was removed. I eventually got all four(4) pecked butt chicks in its own box with light/heat, food, and water. I sat and watched to see who the culprit was. I saw one chick go from chick to chick plucking out fuzz from each and everyone and eat it. So i separate it, with it own light, box, water, food, ect. I don't know why the sudden change in behavior? I asked my FIL who has raised chickens for yrs. He thought would be caused by over crowding or them being to hot. I kinda ruled over crowding out because I have 39 Barred Rocks in same size cage/brooder, 23 in RIRs'. I have not had a pecking problem with the BR's or SLw(28 in their brooder). So I thought over heating? I reduced bulb wattage.....temp got to just about 83-85. All seemed well, I went to bed for some much needed sleep(1am by now). I wake up at 3am and check on all the chicks. To find "#5", this one has its back and right wing pecked. So at 3am I am making yet another box set up searching the house for one more lamp. I have no more boxes, I have no more lamps(in my house),I have no room for yet another box set up........... Heres is where I need help!!!!! How do I prevent it from continuing? I am going to search out a red light with right wattages for my lamps. What is causing this? I just plain need help and advice! Help!! please! This am, the lesser pecked ones are healing well!