But in the mid-1800s, a bird called the guanay cormorant was considered the most valuable in the world!

但在十九世纪中叶，一种被称为冠鸬鹚的鸟则被公认为是世界上最具价值的动物！

But while the guano boom was great for agriculture, it was bad news for the guanay cormorant and other seabirds that called the islands home.

虽然鸟粪为农业生产带来了巨大的收益，但对于居住在这些岛屿上的冠鸬鹚及其它海鸟来说，这却是一个坏消息。