So when deer switch from woody fibre browse to fresh green grass, they can develop severe green grass diarrhea resulting in spring death from dehydration, that is labeled winter kill. Its not over yet by any means, and I too am seeing deer, but not like in years past.....at least for me, nothing to get excited about. Mule deer wintering above the lake in their historic winter range are being driven out by view lots.......and these small sample pics of deer are a pathetic reminder of the past.