In my experience over the years, it seems I don't see many, if any, at daylight when everything is covered in frost...but once that sun comes up and the frost melts and starts dripping off the trees, THAT'S when I start seeing deer....that's generally what happens in my area and experience in extreme SE Alabama. BUT...I must admit that 2 of the bucks I have hanging on the wall were killed right at daybreak (VERY EARLY) on frosty mornings.