I had a friend who trained 'bird dogs'... I used to go out with him hunting. Dove, Quail, Pheasant (when we still had pheasants). Learned to love the breed... but not for hunting, although that would be nice for quail on my ranch. I just loved their temperament. Their overall demeanor.
Smartest dog I ever had was a Vizsla... genius level dogs. You could teach them pretty much anything in less than 15 minutes and they'd remember it forever. BUT.. they are active, MAN ARE THEY EVER ACTIVE!!!! NOT a house dog. I do not have the stamina these days to keep up with the more active breeds.