A few weeks ago my ten month old hen started to limp. She also had grown a very large "sac" on her neck. I have (had) three ladies and none of them have this growth- two isa browns and one Easter egger. The two Isa browns I raised myself, got them at about 5 weeks old. So the one with the limp was laying in the coop last week with labored breathing, wouldn't eat or drink. thought she was a goner but miraculously she seemed to get better. Then last evening she was laying in the run on her side breathing very softly, I couldn't reach her and thought it best to let her be. She was dead this morning. I have noticed my second isa limping. Is this coincidence or is this a disease in my coop? We clean it regularly and put the poo in the garden. Once a day (most days) I let the ladies out and about in the yard to eat bugs and worms and plants. Should I wash their legs? My Easter egger is fine, but doesn't lay eggs! Thanks, glad to be on here!!