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旅鸽即北美旅鸽,是一种特别喜欢旅行的鸽子,为近代绝灭鸟类中最为著名的代表。其英文名中的“passenger”意为“从身边经过的人”。曾有多达50亿只旅鸽生活在美国,拓荒者在荒野里赶着马车行进时,遇到的旅鸽群遮住太阳达几个小时。它们结群飞行时,最大覆盖面积宽达1.6公里,长达500公里,需要花上数天时间才能全部穿越一个地区。由于被不断猎杀,旅鸽数量逐步减少,直至1914年彻底灭绝。
The pigeon, the pigeon of North America, is a pigeon that is particularly fond of travel and is the most famous representative of extinct birds in modern times. Its English name of “passenger ” means “people who pass by.” As many as 5 billion pigeons had lived in the United States, pioneers encountered hurricane groups covering the sun for hours while their wagons were driving in wilderness. When they flew in clusters, the maximum coverage area was 1.6 kilometers wide and 500 kilometers long, taking several days to reach all through one area. As a result of constant hunting, the number of pigeons gradually decreased until they were completely exterminated in 1914.