博士鸟

普通的鹤（又名欧亚鹤）经常被吸引到潮湿的开阔地、沼泽和沼泽地。这群鸟聚集在德国的德姆林湿地。作为所有15种鹤中分布最广的一种，其原产范围覆盖了欧洲和亚洲的大片地区，在俄罗斯和斯堪的纳维亚半岛的繁殖种群最多。随着冬天的临近，普通的鹤开始了漫长的南行，通常成群结队的约400只鸟，到北非或南欧和亚洲的部分地区寻找更文明的温度。
原文：
Common cranes (aka Eurasian cranes) often gravitate to wet open fields, bogs, and marshes. This flock is congregating in the Drömling wetland in Germany. The most widely distributed of all the 15 species of cranes, its native range covers a wide swath of Europe and Asia, with the largest breeding populations in Russia and Scandinavia. As winter approaches, common cranes make the long journey south, often in large flocks of about 400 birds, to North Africa or parts of southern Europe and Asia in search of more civilized temperatures.
《© Mike Friedrichs/Getty Images》