From Muppet Wiki

"The chickens are built without an eye mechanism. Instead, the Muppet builders found an alternative by giving some chickens one wide open eye and one 'relaxed' eye with eyelid; this way, the chicken could change emotions by quickly turning its head."

Where did this come from? I've never seen a chicken with these eyes. -- Scooter 21:25, 29 June 2006 (UTC)

Watch the chickens eyes in Vetrinarians hospital on the Avery Schreiber episode (Episode 116) -- 68.168.84.136 18:19, June 29, 2006