"A three legged chicken!" joke

John was driving his pickup down a country lane, when suddenly
a chicken darts out into the road in front of him. He's just about to
slam on his brakes to avoid the chicken when he realizes that the chicken
has sped on ahead doing about 30 miles per hour.
Amazed, he sped up to follow, but the chicken takes off faster
and faster. Finally the chicken screeches into a turn and goes into a
small farm. As he turns to follow, John notices that the chicken has THREE
legs.
He pulls to a stop in front of the farm house, and looking around,
notices that ALL the chickens have 3 legs.
He says to the farmer "THREE-legged chickens? Thats astounding!"
The Farmer replies "Yep, I bred 'em that way-I love drumsticks."
John: "Well, tell me, how does a 3 legged chicken taste?"
Farmer: "Dunno, haven't been able to catch one yet."