Related Clues:

• Kept in a pen
• In captivity, in a way
• Like a zoo animal
• Not roaming free
• Put in a pen
• Like lovebirds
• Housed in a pen
• Like animals in a zoo
• ''I Know Why the ___ Bird Sings''
• Like a pig in a pen
• Like many parrots
• Kept in
• Housed like Tweety
• Grown old, following a century behind bars
• Like some hamsters