Not all, but most of your scrapes by bucks are done under a branch of some sort, more known as a licking branch. The height of it is usually 4 1/2' to 6' with some of them higher!
If you look closely you should be able to detect some tracks. I'm no turkey man, but you may be able to find the scratches of the turkey's claws in the dirt. Also, since deer are heavier, they will leave impressions. These can be seen easier if you carefully remove some leaves over the spot where they may have stepped. When bucks make a scrape you can often see the pattern from how they were standing. They use both paws and dig in and drag out the dirt and leaves forming a V. You should see longer drags marks too.
Another thing, squirrels dig notoriously under acorn and other mast trees leaving what seems to be at times, scrapes.
iSnipe