I've tinkered with mock scrapes in the past hut this is the first year I've actually done a lil research into them. And from the way I'm understanding it is bucks make scrapes where both does and bucks travel. Scrapes are a place where all of the deer in the area can hit so that they know who's traveling through the area. More less like a sign post. Does will also urinate in the scrapes, letting the bucks know when they are ready to breed. I recently just watched a video on YouTube about late season scrapes being a good spot to catch a buck.