They need to be hardy whatever the breed. I don’t hunt forest but hunted in the hills a lot as a kid and have started again the last year or so. As Wales1234 said...they have to cover ground as things rarely jump up in front of you. I don’t put tracking collars on my dogs. I like to keep them in sight as much as possible. Recall is key for me. I would say mine tend to range no more than a few hundred metres away. I’m normally high up and watch them work the low ground.