Related Clues:

• Extinction exemplar
• Extinct bird that couldn't fly
• Clot
• Dim bulb
• Part of Mauritius's coat of arms
• Box or proof preceder
• Definite Mensa reject
• Block-head
• One who's not swift
• Large extinct bird
• Pigeon relative
• Extinct pigeon relative
• Onetime native of Mauritius
• Birdbrain, or extinct bird
• One with a conical cap