Quiz estimate 111

From SibleyBirds

1. How many eiders?

130324 COEI KIEI w.jpg
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→ The actual number is 157. 157 Common Eider and 1 drake King Eider

Image details: Common Eider, King Eider - Scussett, Massachusetts. 3/24/2013. 157 Common Eider and 1 drake King Eider. Image by Steve Arena. link to image

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