Related Clues:

• Some egg containers
• Fits like matryoshka dolls
• Bird abodes
• Aeries
• Cheep accommodations?
• Atlas features
• Termitaria, e.g.
• Chicks' hangouts
• Atlas blowups
• Oriole abodes
• They're often out on a limb
• Hatchling homes
• Rookery structures
• Ravens' havens
• Homes for robins