Related Clues:

• Birds' bills
• Ducks and most people have them
• Collector's items?
• Bird bills
• Buffalo and Hickok
• They may pile up
• Monthly payments, often
• Bird's beaks
• You'll get them regularly if you have gas
• Senate passings
• Foldable funds
• They can be paid online
• Debtors' woes
• Cardinals' beaks
• Invoices