1. The avifauna of this island is incredibly diverse, with over 200 species recorded.
这个岛的鸟类群非常丰富多样，已记录有200多种。
2. The study of avifauna provides valuable insights into the ecological health of a region.
对鸟类群的研究可以提供有关一个地区生态健康状况的宝贵洞察。