If they have any body size to them they will breed. If they are big in November , they will breed then or as winter goes on and they grow, doe fawns coming in to heat late will get bred by these little guys. I had one this year that fawned in Sept. I was opening up the pens after all the antlers fell off this spring and a button buck ran up to a doe fawn and bam.... it was all over. I didn't know she was in heat. It was around the first part of March. Also, I almost got taken once by a breeder buck in March as I was looking around for shed antlers in the pen. I was just looking at the ground in the snow and looked up and the buck had his ears back , all haired up, ready to pounce when I noticed him. He had a doe fawn in the corner near me.....never forget this can happen late in the season when you are in your pens. Jim