I don't know you or your pup but I do know a little about introduction of pups to birds and the thresholds of their capabilities. This is not intended to minimize your pups capailities but rather a general idea of what alot of 6 mo old dogs are capapble of.

Get some pigeons and find a park where you can dizzy them up and plant them. At six months you can build a ton of confidence in your pup by a few sessions on easy pigeions rather pheasants or chukars that will only run like crazy right now.

Finding the game bird is not what is terribly important right now, confidence on scent and turning the lights on and creating general birdiness is where you should focus at this point.

A few sessions of pigeon work and your dog will be so wound up on scent that when you introduct him to those sneaky gambirds, they wount be confidence killers on the youngster.