Pee in one and see if it grows! Deer don't know human pee from deer pee. I've made mock scrapes using my own pee and had deer enlarge them for me.
However, I also think those are turkey scratchings. For one thing, they seem to be scraped from the center out. Deer scrapes are usually one direction. As has been said, they almost always have either hoof prints, toe marks or both. Often there is a licking branch over the scrape, but I've seen a lot of them without, especially on a well used trail. If you have turkeys in the area, I'd be 99% sure that's what made your "scrapes" though.
BTW: turkeys are mighty tasty too.