Waterfowl hunting can be very dangerous. (also a lot of fun). But you should hunt with a partner especially under those conditions. Many years ago when I was young and daring my cousin and I went trout fishing one winter day. The temp when we left the house was -12*. We both were only wearing hip boots with layers of clothes/socks. Where the water was running in the stream it was open and we were catching some nice fish. At least we were until I slipped and fell into the water up to my just past my waist. We were about 3/4 mile from his truck. I tossed him my rod and he tossed me his keys and I ran for the truck. My legs and feet were so cold they felt like they were in a vise!