Related Clues:

• Places to brood
• Seats
• Crash sites?
• Places for 56-Across
• Fits one inside the other
• Homes in trees
• Embeds
• Some sleeping places
• Love seats, e.g.
• Branch houses
• Hotbeds
• Squirrels' constructions
• Spots for dozers
• Bird houses?
• Twiggy digs