You'll find the burrowing owl in any old edition of Who Whos in America, but he is not your typical wise, old, who-who owl. He's the droll one who lives in a hole in the ground and spends most of the day standing on his stoop, bowing ceremoniously to passers-by. Is the Io (pronounced eye-o) moth a trick or a treat? Who knows? Don't panic if this clown shows up on your stoop on Halloween when you're fresh out of goodies—just give him an IoU.