Annual Springfield to Shelbyville Birditarod
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The Annual Springfield to Shelbyville Birditarod is a fake race made up by Moe for Raymond Bird to take part in.
History
Moe suggested the race to Homer and was going to do it until Santa's Little Helper ate Raymond Bird. Moe then revealed that it was a hoax and a scheme to steal Homer's house, and that there was no such thing as a Birditarod.
Poster
According to Moe's poster, 100 birds would have entered, 1 bird would have won, and 3 birds would have been sucked into a plane.
Behind the laughter
The name of the race is a pun on the Iditarod Trail Sled Dog Race, which is held annually in Alaska.