Related Clues:
- Northern Hemisphere bird
- Nest dweller
- Birdhouse bird, perhaps
- Build a home in the woods?
- Twiggy habitat
- Charles II's royal architect
- Cozy place
- Song bird or architect
- Ptarmigan, for one
- Condor's quarters
- One out on a limb?
- Aerie, for example
- Important British architect
- Rat's home
- Royal Society cofounder