In past years (about 20) I have had many types of chickens. I have raised meat birds, sex links for eggs, old fashion New Hampshires, R. I. Reds, Plymouth Rocks and mixed Bantams. All of this took place in Southern New Hampshire. I now live in Northern New Hampsire about 10 miles from the Canadian border. I live in an open field with great mountain views but needless to say very cold tempertures and wind. It is not uncommon in winter for the temperture to dip to -20F. and the wind to blow at 30MPH. I am now retired and want to raise chickens again. I have been thinking about a small flock (25) of bantams. I need to build a coop and run and was wondering if anyone had experience with this type of weather. Can bantams withstand this weather or would I be better off with a large breed. Other questions are: Insulated copp? Heated coop? I've dealt with frozen water and frozen combs in the past. Thanks in advance for any advice.