I have a yellow lab I have taken for the last 3 years to South Dakota and I have a hard time keeping track of her while hunting. she comes when I call. But if we are in milo or tall grass and I can not tell where she is I would call her back she might be on a bird. So I am thinking of putting a bell on.
The question is would it affect the birds if I put a bell on her while hunting
I have already put it on her and it works great
Thanks for you imput

You might try a beeper collar.

Satellite tracking collar, no noise

I presume you are using this dog to flush birds. A bell probably will cause birds to run, especially late season and in crops.
A gps will tell you where she is.
However, teaching her to run a pattern zig zag in front of you would be better. You can do this easily with a check cord.

A bell or beeper collar are going to cause the birds to run. They get smart real quick and anytime they hear any noise they start to run. I'd look into a Garmin Astro or Garmin Alpha system.

Not if you program it to the "point only" mode. I have killed plenty of pheasants using a beeper in this fashion.

I use a beeper. It works fine.

I set it to beep only when the dog locks on point.

Don't they make a beeper that sounds like a hawk when on point?, if you go beeper that would be the one I would use

They do.

Thanks for all the response
I talk to the guide and he said it is ok to use a bell to keep track of my dog
I plan on using it mainly in the milo or cane fields when I can not see her