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Quiz estimate 24

From SibleyBirds

1. How many birds? (Snow Geese and Black-bellied Whistling-Ducks combined)

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→ The actual number is 372. 183 Snow Goose, 189 Black-bellied Whistling-Ducks

Image details: Snow Goose, Black-bellied Whistling-Duck - , . . 183 Snow Goose, 189 Black-bellied Whistling-Ducks. Image by Martin Reid. link to image

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