Shake hand warmers in your gloves are your friend. The warmer you keep your core body (although I don't recommend sweating too much in the cold), the more blood your body will allow to go to your extremities too.
I'd watch your ears too, in that wind. I wear in ear hearing protection. I used to use over the ear devices. Sunday, I will be wearing the over the ear devices. Maybe even Saturday. They happen to insulate and keep my ears warm, even though that isn't their primary purpose. If you don't use hearing protection, some type of muff or hat that goes over your ears is a good idea. I use a baseball style cap, since that is what my camera mounts to. It doesn't provide much for heat retention of my head, but the hoody hood helps with that.
Heck, I have never worn a facemask when pheasant hunting, only deer hunting, but I might dig out one to bring for Sunday. It is a pain in the rear end for us eyeglass users. Can't have my mouth covered, because of the water vapor and condensation issues with my glasses too. I do have a warmer neck gaiter that has pockets for hand warmers too, along the sides, that stick up to warm cheeks and ears. Mine covers my mouth if I pull it up, so I can't get maximum benefit, but I will be using that too.
I wear a zip up fleece hoody over my tshirt. Down under 5 degrees, I also have a heated liner vest that I wear between the tshirt and hoody. However, the arms and hood on the hoody allow the wind to go through to bare skin. I will probably wear a hooded wind breaker on Saturday and Sunday over my hoody. If that is too warm, I will try it under the hoody. I'm pretty warm blooded, so it doesn't take much to get me too warm, and then I have to start untucking my shirt, unzipping my hoody/heated vest, exposing my stomach (call that my air conditioner), etc. I don't expect to run the air conditioner on Sunday!
