Related Clues:

• Titmouse, e.g.
• One filling the bill?
• See 5 Down
• Condor or conure
• McHale teammate
• Robin, for one
• Audubon painting subject
• Tweety ___ of Warner Bros. cartoons
• Martin or swift
• It fills the bill?
• Bulls, oxen, etc.
• Oriole, for one
• 20 Across, for example
• Loon or hoopoe
• Crow or crane