During the annual Christmas bird count conducted by the Audubon Society, volunteers count the number of individuals of every bird species they can see or hear within a 24-kilometre circle. This is an example of a(n) _____ survey.

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The Answer of During the annual Christmas bird count conducted by the Audubon Society, volunteers count the number of individuals of every bird species they can see or hear within a 24-kilometre circle. This is an example of a(n) _____ survey.

During the Annual Christmas Bird Count Conducted by the Audubon