Hi everyone. I'm new here but I have been reading these forums for awhile. I have a coop with 20 hens and 1 rooster in it. Yesterday morning my chickens where fine when I fed them and then by evening when I checked on them I had 5 hens had passed away. They was bleeding from the mouth only and it looked like a crime scene. Feathers was everywhere and blood spatters was on the nesting boxes and the walls. One hen was in a nesting box dead with eggs under her. Does anyone know what could have happened? It was devastating.