I have to disagree with some of the others. I have seen bucks work scrapes during daylight in the last two weeks. Unfortunately, I think they were more random encounters with the scrapes than any planned action on the buck's part. One was a big boy, who tended a scrape after going nose to nose with a basketrack (no fighting). I called them in, but they met just out of bow range. That was just before dark.
Last weekend, I had a forky come by after being pushed away from a doe by a bigger buck. He stopped and tended a scrape that is 30 yards from my stand. On Halloween, a seven point tended a scrape about 80 yards north of my stand, then chased a doe by east of me. I got a good look at him, but no shot. His rack wasn't impressive, but he was huge! My cousin shot him later in the afternoon.
If they are on their feet, which they are now as the rut kicks in, they will tend a scrape unless they are actively chasing a doe, but don't count on it being the same buck each time.