Scrapes shut down this time of year. The buck are locked up with does right now. Give it 2 weeks and they will start hitting them again.
most of the time when a mature buck goes looking for another doe he will check his scrapes. so in a week or so he will open up his scrape lookin for the last does in estrus. if i were you i would try hunting the does and you will kill a good buck!:way:
As of last weekend I still had active scrapes, not sure about now however.