There was the most resident bird species (67.7%) in autumn and the most migratory bird species (57.4%) in spring.
2
岛上今天鸟种类的数量几乎和人类定居之前完全一样，但是岛上鸟的种类则非常不同。
The number of bird species on islands today is almost exactly the same as it was prior to human colonization, but the species of birds on the islands are very different.
3
“国际鸟类联盟”首席执行官迈克·兰德斯说，鸟种类减少反映出全球范围内的环境恶化。
Decline in the number of birds species indicates environmental deterioration worldwide, said Mike Rands, CEO of Birdlife International.
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