Youknow Bird was a pink bird with an orange beak and large plumes on her head who first appeared in the sketch "Birds in the Trees" from The Muppet Show: Sex and Violence. Although she repeatedly said "You know" in the sketch, Jim Henson's indicates that her call originally was "Possibly."
- The Muppet Show: Sex and Violence
- The Muppet Show
- The Muppet Movie
- Wow, You're a Cartoonist!
- Muppets Tonight
- Mopatop's Shop
- The Wubbulous World of Dr. Seuss
- Episode 210: The Cat in the Hat's Indoor Picnic (as a Snark)