20世纪30年代,英国送奶公司送到订户门口的牛奶,既不用盖子也不封口.因此,麻雀和红襟鸟可以很容易地喝到凝固在奶瓶上层的奶油皮.后来,牛奶公司把奶瓶口用锡箔纸封起来,以防止鸟儿偷食.没想到20年后,英国的麻雀仍继续吃它们喜爱的奶油皮,而红襟鸟却没了这种“口福”.原来麻雀是群居的鸟类,当某只麻雀发现了啄破锡箔纸的方法,就想办法告诉别的麻雀.而红襟鸟由于喜欢独居,沟通仅止于求偶和对于 In the 1930s, British milk companies sent milk to subscribers’ gates without caps or seals. Therefore, sparrows and red ostriches could easily drink the creamy skin that had solidified on the top of the bottle. Later, the milk company took the bottle. The mouth was sealed with foil to prevent the birds from stealing food. I did not expect that 20 years later, the British sparrows would continue to eat their favorite cream skins, and the red ostrich had no such “fuji”. The original sparrow was The gregarious birds, when a sparrow finds a way to break the tin foil, try to tell other sparrows. The red ostrich prefers to live alone, communication only ends with courtship and