Frozen bunny?

I never recall seeing a bunny this time of the year. This little one was sitting verymstill on our front lawn when I went out to,get the paper. I didn't even see him at first. As is was coming back up the driveway I saw him so I quietly went back in the house, got,my phone and went back out hoping he would still be there. Lo and behold he had not moved. I guess he was enjoying the heat of the su because it was very cold outside.