Quiz estimate 3

From SibleyBirds

1. How many Black Scoters?

SandyNeckBarnstableMA IMG 3155 2014-10-23 w.JPG
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→ The actual number is 13. Exactly

Image details: Black Scoter - Barnstable, Massachusetts. 10/23/2014. . Image by David Sibley. link to image

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