Related Clues:

• St. Paul's architect
• Astronomer-turned-architect
• Small songbird
• Birdhouse resident
• Bass, e.g.
• St. Paul's architect Sir Christopher
• Carolina ___
• Bass, for one
• Birdhouse dweller
• Birdhouse bird
• Small bird
• Songbird
• Brownish songbird
• Valuable insect-eater
• 'Beau Geste' author