Right on. I mostly figure wild vs released based on location. All wild where we are at. I'm told released birds rarely survive a winter, so if you are getting hold overs they are likely wild. You can tell hold over by serious spurs, or by holding the bird by the lower beak. If the beak doesn't fold it's a hold over. The pup on the right is a 9mo old too. Second trip this year. We got into a bunch of quail this past w/e. The pup had a bunch of good points and retrieves. Was great seeing the synapses start to connect in his little setter brain.
Good luck. Get after them now before too much snow ruins the sport of it.