I have only seen this a few times and every time has been around feeders - hogs chasing deer. Out in the open fields, I don't think I have ever seen it. However, this was a good example that I caught on video, almost from the point when the boar entered the clearing until I finally shot him. I really got a kick out of the reactions of the deer as well.

Nice shot!

Several years ago I was watching deer at a feeder after dark when a large boar came in and ran them off. It was around late May or early June, and the deer (three does) were heavily pregnant. They ran off a distance, but then decided they weren't in the mood to be pushed around by a hog. They marched back and forced the hog to leave the area. I was stunned, having never before (nor since) seen that happen. I have seen deer stick around after a hog was shot, though. I guess they know when it is or is not open season.

That is wild. Heck of a nice shot.

FULL Frontal Head Shot

Got a boar chasing off deer in video a couple months ago.

He came quick, with the intent of running the deer off, then when the deer hung around, he charged at them. You can see the deer on left side of screen run off when he charges.

Like the deer in your video, they didn't leave. They waited for me to load the hog, then came back to eat.

Kill those bastards, good shooting!