Rooster replacement

Banta was driving down a quiet country lane when out into the road strayed a rooster. Smack! The rooster disappeared under the car and up floated a cloud of feathers.
Shaken, Banta pulled over at the farmhouse, rang the doorbell. A farmer appeared.
Banta, somewhat nervously said, "I think I killed your rooster. Please allow me to replace him."
"Suit yourself," the farmer replied, "you can go join the other chickens that are around the back."