Southern United States chickadee similar to the blackcap but smaller.
产于美国南部的山雀，与黑冠雀形似但较小。
A few — such as the Blackcap — have started to adapt by spending winters in Britain, but such behaviour remains exceptional, the study said.
研究称，少数鸟类如黑顶莺等已经开始适应在英国过冬，但这种情况还只是少数。
A few — such as the Blackcap — have started to adapt by spending winters in Britain, but such behaviour remains exceptional, the study said.
研究称，少数鸟类如黑顶莺等已经开始适应在英国过冬，但这种情况还只是少数。
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