I was surprised to see there were actually two bucks in the small deer herd in the backyard. They were not particularly antagonistic toward one another and not really exhibiting real aggression. Their behavior was more like the shoving matches of two brothers.
They both seem a little under-developed as bucks go, so perhaps they are just yearlings. Lack of aggression may mean the rut is mostly over, with male hormones waning, or perhaps these two are siblings and recognize each other. In any case, this face-off didn’t amount to much.