Naturespeak: Highs and lows of corridor Christmas bird counts

By Karl Ricker and Kristina Swerhun
the christmas Bird Count (CBC) was started in the year 1900, replacing the old Christmas Bird Hunt. The CBC is generally accepted as the best tool available for assessing long-term trends in the early winter bird populations of North and Central America.…

Source:: Naturespeak: Highs and lows of corridor Christmas bird counts

• Whistler News

January 22, 2020

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