I have 7 month old pullets, I posted a couple weeks ago about one. I lost one Oct3,Another one Oct 24.And now I have one thats bad again. This one I just found at the bottom of the ramp going in the chicken house. There has been very little sign of them being sick. Right now she moves like a drunk person trying to put her wings down to balance herself.The other two were unsteady too, just before they died. I got them from McMurrey this spring and had them given Markes shot. There runs and coop I keep pretty clean. They have layer petts and a little corn in the evening now that the temps are starting to drop. They do not free range so could not have gotten into anything. Since I lost the first one I have really watched them. I dewormed them, and put lots of DE every where. Yesterday they were all fine. Now tonight this one is almost gone. What could it be? There is no bloody poo, no coughing, whezing, etc. Nothing I can find that shows something is wrong. Wouldn't any other diease they could get kill them all faster instead of every three weeks one dieing?