What does Big Bird eat?

If Big Bird was a real bird, would he eat Oscar the Grouch?

Should the kids on Sesame Street run in fear from an eight foot two inch yellow bird?

Naturalists don't know every bird and species of animal throughout the world, but as keen observers, they can hypothesize how an unfamiliar animal hunts, moves, and lives based on the physical traits that they have in common with known species.