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24只小燕子挤在一根树杈上,以保持热量,抵御严冬。59岁的英国摄影师基斯·威廉姆斯在加拿大育空河附近遛狗时,抓拍了这一场景。
24 swallows crowded in a tree twig, in order to maintain the heat, to withstand the winter. The 59-year-old British photographer Keith Williams captured the scene while walking her dog near the Yukon River in Canada.