Too many things can go wrong taking an untrained dog hunting, even assuming it has been introduced to gun fire. The dog hasn't been FF, CC, or received any basic training. So there are guarantees he'll sit quietly in the blind, go get the bird, won't break on the shot, can find the bird, won't eat the bird, will return with the bird, will return when called back, won't chase a cripple over the hill/across a road...etc.