Looks like there is a small deer with him... Possibly a small young doe that is coming into estrus late? Not something I would normally think of this late in the season but since the season is ending soon anyway not going to hurt.... Could look at creating a mock scrape next to your stand and dump a bunch of doe in estrus urine (something like Tinks 69) in it... He may be intersted enough to check it out during daylight hours?