My first post to bare with me!! I have 9 chicks ( 4 weeks old, 3 RIR, 2 BR, 2 Black Austrolorps, 2 Araucanas) in a largish brooder. all have been getting long just fine. I've been taking them out on warm days for an hour or so. Last evening, I noticed a tiny red patch near tail feathers on one of my RIRs. I put on some neosporin and went to bed. This morning it looked as though there was a massacre in the brooder. Four of the chicks were bleeding on their backs and had beenextensivly feather pecked. I watched horror to see if I could determine an aggressor but it appeared many of them were pecking on each other. I have separated the injured and applied neosporin and pick no more after cleaning. My question is, will they survive? I have removed the red light, and will let them sleep in the dark tonight. Will I be able to put them all back together again and if I do when? The weather is a bit chilly for being outside (50s) but as soon as its warm.