This big odd toucan billed thick-bill was introduced in "Scrambled Eggs Super!". It was said that it was so big, that it can scare people to death.
However she likes to watch moths fly around and it eases her mind, some poachers that Peter T. Hooper called to help sneak behind her and one of them uses the moth to distract her. The another poacher quietly rigs the egg with a rope while a horse and another poacher watch getting ready to take off with the egg.
In the Dr. Seuss Video Classics version of this book As soon as the poachers take off with the egg, The Moth-Watching Sneth falls on her bottom as she looks behind realizing what has happened.