Anecdotally, this is our current dog's backstory. Hunting dog, abandoned at some point due to either poor hunting skills or the human's inability to feed him in off season, bounced around a little bit before we adopted him. A few dogs we met while looking for a new buddy had similar backstories (abandoned hunting dogs particularly beagles and hound varieties). Again, it's anecdotal, but the rescues we spoke with seemed to be familiar with the scenario.