Text (UG): 2/2. ; Stand up, Flap your arms, Cluck like a chicken: ~this~ gains flying until end of turn.
If you're playing whilst stood up, you must sit down before playing the chicken's ability. [Barclay 1998/08/13]
Players who cannot stand up due to disabilities, medical conditions, or drunkenness may say "I am standing up" before flapping their arms. [TomHa 1998/09/15]
All tournament formats have banned cards from Unglued.