How to Use "guano" with Example Sentences

1. Between 1840 and 1880 , guano nitrogen made a vast difference to european agriculture .

2. Japan points to 19th century use on the island to collect seabird feathers and guano .

3. By the 1900s traders had stripped the guano penguins hid their eggs in and the birds have had to lay them on bare ground exposed to scavengers .

4. By the early 1900s guano deposits tens of feet deep had been scraped to bare rock and southern right whales had been hunted almost out of existence .

5. In the dry uplands of chile , rich mineral nitrate deposits were then found , and gradually took the place of guano in the late 19th century .