I've never seen a young buck do this but somewhat often see it with old experienced bucks. Long way from rut but there he is hitting a scrape in front of a doe with new fawn, then approaching her for a sniff. Dollars to donuts I can count back to conception, and he'll be here again same time this season to breed her. He now knows where she lives and when she'll be in estrus, and already introduced himself to stake claim. And for a few days I'll know exactly where to hunt him!