Ethics are a personal thing. I went many a season only shooting a flushed bird. Then we had some lean years, all day hunting and only 1-2 flushes. BUT there goes another ATV (4wheeler) putting down the trail. Or the Nimrod shooting from the road.
Nowadays i don't make a big deal about a bird on the ground. Just don't take to many. Think of the youngsters that would like to see a few birds.
personally i don't like hunting over a dog. You miss a lot of nature when you have to be focused on that soup hound. Yes you will probably be more successfully (bag) but hey, its your hunt, Hunt the way you enjoy.
Nowadays i don't make a big deal about a bird on the ground. Just don't take to many. Think of the youngsters that would like to see a few birds.
personally i don't like hunting over a dog. You miss a lot of nature when you have to be focused on that soup hound. Yes you will probably be more successfully (bag) but hey, its your hunt, Hunt the way you enjoy.