A hillbilly went hunting one day in Oklahoma and bagged three ducks. He put them in the bed of his pickup truck and was about to drive home when he was confronted by an ornery game warden who didn't like hillbillies. 

The game warden ordered to the hillbilly to show his hunting license, and the hillbilly pulled out a valid Oklahoma hunting license.

 The game warden looked at the license, then reached over and picked up one of the ducks, sniffed its butt, and said "This duck ain't from Oklahoma.

This is a Kansas duck. You got a Kansas huntin' license, boy?" 

The hillbilly reached into his wallet and produced a Kansas hunting license. 

The game warden looked at it, then reached over and grabbed the second duck, sniffed its butt, and said 

"This ain't no Kansas duck. This duck's from Arkansas. You got a Arkansas license?" 

The hillbilly reached into his wallet and produced an Arkansas hunting license.

 The warden then reached over and picked up the third duck, sniffed its butt, and said This ain't no Arkansas duck. This here duck's from South Carolina. You got a South Carolina huntin' license?"

 Again the hillbilly reached into his wallet and brought out a South Carolina hunting license.

 The game warden was extremely frustrated at this point, and he yelled at the hillbilly "Just where the hell are you from?"

 The hillbilly turned around, bent over, dropped his pants, and said "You tell me, expert."