the passenger pigeon was once the most abundant bird in north america.
旅鴿曾經是北美洲最常見的鳥類。
martha, the last known passenger pigeon, died in the cincinnati zoo.
最後一隻已知的旅鴿瑪莎死於辛辛那提動物園。
hunters killed passenger pigeons in huge numbers for cheap meat.
獵人為了便宜的肉類，大量獵殺旅鴿。
the extinction of the passenger pigeon is a classic example of human impact.
旅鴿的滅絕是人類影響的經典例子。
massive flocks of passenger pigeons would darken the sky for days.
數以萬計的旅鴿群體會讓天空在數天內變得一片漆黑。
deforestation destroyed the passenger pigeon's primary breeding grounds.
砍伐森林摧毀了旅鴿的主要繁殖地。
scientists are attempting to bring back the passenger pigeon using dna.
科學家正試圖利用DNA來復活旅鴿。
the passenger pigeon population declined rapidly in the late 19th century.
19世紀末，旅鴿的數量迅速減少。
conservationists use the story of the passenger pigeon as a warning.
保育人士將旅鴿的故事作為一個警告。
nothing remains of the passenger pigeon except for museum specimens.
除了博物館的標本外，旅鴿已經什麼都不存在了。
technically, the bird known as the passenger pigeon is the wild pigeon.
從技術上來說，被稱為旅鴿的鳥類就是野生鴿。
the relentless slaughter of the passenger pigeon caused its demise.
對旅鴿的無休止獵殺導致了它的滅絕。
the passenger pigeon was once the most abundant bird in north america.
旅鴿曾經是北美洲最常見的鳥類。
martha, the last known passenger pigeon, died in the cincinnati zoo.
最後一隻已知的旅鴿瑪莎死於辛辛那提動物園。
hunters killed passenger pigeons in huge numbers for cheap meat.
獵人為了便宜的肉類，大量獵殺旅鴿。
the extinction of the passenger pigeon is a classic example of human impact.
旅鴿的滅絕是人類影響的經典例子。
massive flocks of passenger pigeons would darken the sky for days.
數以萬計的旅鴿群體會讓天空在數天內變得一片漆黑。
deforestation destroyed the passenger pigeon's primary breeding grounds.
砍伐森林摧毀了旅鴿的主要繁殖地。
scientists are attempting to bring back the passenger pigeon using dna.
科學家正試圖利用DNA來復活旅鴿。
the passenger pigeon population declined rapidly in the late 19th century.
19世紀末，旅鴿的數量迅速減少。
conservationists use the story of the passenger pigeon as a warning.
保育人士將旅鴿的故事作為一個警告。
nothing remains of the passenger pigeon except for museum specimens.
除了博物館的標本外，旅鴿已經什麼都不存在了。
technically, the bird known as the passenger pigeon is the wild pigeon.
從技術上來說，被稱為旅鴿的鳥類就是野生鴿。
the relentless slaughter of the passenger pigeon caused its demise.
對旅鴿的無休止獵殺導致了它的滅絕。
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