Ask Maine Audubon: Christmas Bird Count helps identify trends in bird population
It is impossible to count every bird, but the greatest value in the project is doing over long periods of time and large ...
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Ask Maine Audubon: Christmas Bird Count helps identify trends in bird population
It is impossible to count every bird, but the greatest value in the project is doing over long periods of time and large areas of space. This winter marks the 125th anniversary of the Christmas ...