I don't know much about hunting in New Hampshire but there are wild Bobwhites in Western Oklahoma. Some public land too. Also lots of dove. Overrun with deer and hogs. Would think those stinky ducks and geese would be out and about too.
In Northwestern Oklahoma there is a large Fedeeral Grasslands that is open to the public.
Because of sandburrs you will need to learn about booting a dog. I use motorcycle innertubes and duct tape. WalMart has red, green, blue, hot pink, yellow, orange, black, and white duct tape. I really like the way the colored duct tape looks on the dogs. No charge for that bit of trivia. My second favorite boot is the "Lewis" black molded rubber boot made in Oklahoma. Again duct tape works best for holding it on.
If you join local NSTRA (National Shoot To Retrieve Association) regional assocation you will meet many avid quail hunters. There may also be a bird dog club in Norman.
I would guess that as far as bird hunting you are going to be happy.
Best,
Mike
Edit - here is a link to the local NSTRA region chairman:
http://www.nstra.org/oklahoma.htmHere is a link to another field trial assocation in Norman:
http://oftca.com/clubs/