Hi! We just got our first batch of hens. We bought 20 all together, half went to my mothers and half with us. In the 2 weeks we've had them we've 6 die of our own, my mother has had 5 die. When we received them they were extremely wormy, we wormed them immediately. They have no apparent reason to be dying, some we can tell are sickly and others have no symptoms of being. Only obvious thing we encountered today is one of our hens was not moving much. Eyes were swollen shut with green puss coming out and also out of her nose. Other than that we have no explaination on others! Any ideas what could be causing them to die???