As long as the weather is mild, bucks will go nocturnal. They need to recover from the rut and will not be using up much energy, feeding at night and bedding down most of the time. Remember, during the rut, you will see more bucks as they travel to find does. Also, when you have many hunters in the woods during the rifle season deer will be moved by them. Post gun season is when I enjoy late season hunting, finding feeding travel routes and setting up there. Cold weather forces deer to feed and that can mean daylight movement. Really cold temps and I can usually find deer out at mid-day when the sun warms them up a bit and they head out for a bite to eat. I would think trail cams should reveal deer in the food plots at night right now.