Related Clues:

• Some tree houses
• They may be feathered
• Homes for those living in the sticks?
• Twig-and-mud homes
• Roosts
• Bird berths
• Some egg containers
• Fits like matryoshka dolls
• Bird abodes
• Aeries
• Cheep accommodations?
• Termitaria, e.g.
• Chicks' hangouts
• Oriole abodes
• They're often out on a limb