Related Clues:

• Home, informally
• Nuthatch home
• Comfy spot
• Parade day
• Colony
• Digs in twigs
• Part of a rookery
• Build a tree house?
• Tree house
• Place of refuge
• Home in a hemlock
• Fit in
• Egg depository
• It may be feathered, but not tarred
• March event, maybe