When my husband went out to our coop yesterday morning our big Australorp Laverne was dead. She was only 1 year and 5 months old. She had some feathers missing from the middle of her back, she was stiff, with her feet sticking straight down, laying flat. We have no idea how she died. Our other two Australop's were fine. The coop has thick wire with very small holes. Though they each have a separate roost they usually all flock together on top of the roost boxes inside the coop. The coop has a roof but the only shelter is inside the roost boxes. We are in South Florida and the past few nights have been in the 40's-50's, which is cold for us here. I suspect that a racoon possibly reached it's hand in and killed her. However, we also have a large German Shepherd in our yard, who would attack any animal that she heard in the yard. She usually sleeps on the front porch and the coop is in our side yard of our 1.25 acre lot. I wish I knew what happened to our chicken. We don't use any poisons in the yard as the chickens free range out there almost every day. Any thoughts?