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Birds in the Air: Identifying Birds in Flight

HKBWS WY

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1# A A A Post at 17/08/2017 15:16  Show author

Birds in the Air: Identifying Birds in Flight

Sharing of useful link for birdwatchers. Provided by Anabel from overseas.

Birds in the Air: Identifying Birds in Flight
http://www.airoasis.com/knowledg ... ng-birds-in-flight/

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