Related Clues:

• Stupid person
• Bird that is no more
• Dumb one
• One slow on the uptake
• Ignoramus
• Extinct Mauritian
• It's been extinct since the late 17th century
• Bygone bird
• Long-gone bird
• Symbol of density
• Erstwhile bird
• Clumsy extinct bird
• Flightless bird of yore
• Bygone flightless bird
• Bird extinct since the late 17th century