Thank you, Scotty! it wasn't too cold when I snapped the deer image-about 25 degrees F with a to-the-ground overcast. But, it was -9 F when I took the waterfowl images. I photographed those at a warm water discharge area on the Minnesota river.
Thanks, Don! Interestingly, despite fairly regular snowfalls I haven't gotten out in one until that day. We're in for 2 more storms this weekend so perhaps I'll get more images like that with antlered deer.