I usually like to concentrate on food sources in mid December when I make it out. Bucks are usually trying to build up what they lost in the rut. Last year we still had a couple hot does in Mid January so we had bucks chasing two does both mornings I was out. I was baffled to see it that late and wouldn't have believed it if I hadn't seen it. You won't see all day activity like the rut but you should get some decent morning/evening hunts.