I use a beeper collar that has a couple settings. I use "point only" mode in open ground and in the woods if it's quiet enough. Use the "locate/point" mode in heavy woods. Most of my hunting is in thick, heavy cover, so it's hard to keep track of a dog, even at close range. Can't see or hear the dog 10 yards away and need some way to hear him. A simple bell isn't enough.
I don't think the beeper makes any difference to birds. They know you're there anyhow. Ever stop to hunt a new marsh or field and pheasants start flying out the other end 1/4 mile away before you've even closed a door? Then while you're walking they do the helicopter pop-up to check you out. In windy conditions like you have in the plains, sound gets blown and directional hearing is compromised, too, so you're hard to echo-locate.
A grouse will flush wild at the sound of human voice, though and so no talking, I use hand signals between guys.
The first beeper collar I used had a mercury switch and I think it was the best collar I've ever owned. A bearing would bounce inside and when it made contact it would beep. So it went off like a bouncing bell might. The tweety birds would answer those beeps as if talking back to another bird, I swear. I've heard that with the new one, but not as much or as often.