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1·Many ornithologists specialize in very rare or endangered bird species rather than focusing on more common birds.

相对于关注常见鸟类，很多鸟类学家更是稀有和濒危鸟种的专家。

2·On Cape York Peninsula, there are 379 rare or endangered plant species and 85 rare or endangered vertebrates.

在约克角半岛，有379种珍贵或频危植物，85种珍贵或频危脊椎动物。

3·It is the breeding ground of almost 100 species of birds, many of which are rare or endangered. Some 80 other bird species migrate and seek refuge there every winter.

有约100种鸟类在这个保护区内生活繁衍，其中许多是稀有濒危鸟类，另外还有大约80种侯鸟每年到这里过冬。