Related Clues:

• Like the spotted owl
• Antiquarian's adjective
• Unwonted
• Not easily found
• Few and far between
• Little-seen
• Extremely uncommon
• Nearly unique in the world
• Pretty pink
• Like an 1864 two cent piece
• Remarkable
• Like a black pearl
• Quite uncommon
• Pink or red, e.g.
• Endangered