Why would a buck work a scrape....and NOT urinate in it?
Is he not ready to mate (sounds unlikely)?
Trying to assert some sort of dominance issue by removing another buck's scent?
Other?
IMO a buck might work a scrape and not piss in it so he could go undetected.....kinda like a jake keeping quiet so he don't get thumped by a Tom, but still coming intoa hencall......he just can't help it sometimes......
I've seen several work scrapes.....and even seen (what HAD to be "subordinate" bucks do so in the presence of a more dominant animal) multiple bucks use the exact same scrape in the presence of others.
Community scrapes.........Must not have been during peak rut time, or the dominate buck was not the one you thought it was.
Why would they work every other aspect of the scrape (licking branch......pawing of ground..) and NOT piss in it?
So they don't get thumped imo.