Yard Bird - a hyperactive and very fast flightless bird that appeared in only a few episodes, mainly as the Big Cheese's delivery boy. He has a design defect that causes him to explode if he stops moving for more than two seconds. In KNT, the character was modeled after Jackie Joyner-Kersee (Japanese reading Jakkii Joinaa-Kaashii, Choinaa rhymes with Joinaa), the Olympic gold medalist, while his English name is derived from the famous 1960s English rock band The Yardbirds (which is itself derived from the nickname of jazz legend Charlie Parker).