Related Clues:

• Bird's pouch
• Animal stomach
• Animal's stomach
• Stick in one's ___ (cause resentment)
• Sticking point, metaphorically
• Bird's crop
• Avian crop
• Bird's belly
• Part of a bird's gullet
• Holder of bird food?
• Bird food processor
• Robin's stomach
• Where bad feelings stick
• Bird's gullet
• Bird's stomach