"Tracks," said Piglet. "Paw-marks." He gave a little squeak of excitement. "Oh, Pooh! Do you think it's a — a — a Woozle?" "It may be," said Pooh. "sometimes it is, and sometimes it isn't. You can never tell with paw-marks."

The Complete Tales & Poems of Winnie-the-Pooh, Winnie-the-Pooh, Pooh and Piglet Go Hunting and Nearly Catch a, Woozle (p. 34), Dutton Children's Books. 2001