It also depends on the area your hunting. The lower mainland is extremely crowded in all public areas.
The OP was about hunting in the Okanagan where there are far fewer people chasing migratory birds. Around here a 400 yard buffer would be bare minimum so as not to interfere with someone else’s set up. Even then you could easily screw up the other persons hunt which would not be ethical. In parts of Alberta you’d better be a mile away or you’d be getting neutered……