I put my 17 1-month old RIR chicks in a different cage than usual for the night when I brought them in from their ex-pen. The bottom of the cage sits about 1 1/2 inches off the ground. When I went out the next morning I was horrified to find 5 of my dear babies with severe leg and toe injuries. One baby lost his whole foot! It was hideous!!! The only other injuries were 2 chicks who had some skin tears on their breasts. What could have caused this? A rat? Only after this happened, my brother mentioned that he'd heard some rustling in the horse stall which is about 40 feet from my coop. I have had problems with raccoons before but this didn't follow the same pattern as a coon and my adult birds were fine. Meanwhile, everyone is still alive and recovering from their injuries although the one hops pitifully on one foot with a broken toe and a stump on the other one. I am putting them back in the original, smaller cage that is 1 1/2 feet off the ground. I feel like a terrible chick momma! I guess it's time to buy more rat poison for the barn.