guano

Their collective body heat raises the cave’s temperature to a sweltering 106°F, and the piles of guano beneath them are deep enough to bury the Statue of Liberty to her waist.

From The Wall Street Journal ● Jun. 19, 2026

"Together, the chemical and material evidence we studied confirms earlier scholarship showing that guano was deliberately collected and used as a fertilizer," Dr. Bongers said.

From Science Daily ● Mar. 7, 2026

The latter elements suggest the hearth was intentionally sealed with a mixture of guano and sand, which can protect plant materials within the hearth from catching fire—conditions needed to create tar.

From Science Magazine ● Nov. 22, 2024

Their guano, or dung, can also be used as fertilizer.

From Los Angeles Times ● Oct. 31, 2024

It was the one where Kehaar used to shelter and the lobby at the mouth was still cluttered with guano.

From "Watership Down: A Novel" by Richard Adams

It has been estimated that Texas guanos alone consume 6,600 tons of insects each year.

From Time Magazine Archive

There is no doubt, however, that such guanos are very useful, and if obtained in large quantity, and of uniform composition, would be used to a much larger extent than they at present are.

From Elements of Agricultural Chemistry by Thomas Anderson

When applied to the turnip crop, it is well to use the more phosphatic guanos or to supplement it with superphosphates.

From Manures and the principles of manuring by Charles Morton Aikman

Up to the present time, guanos and phosphates are all but unknown in these regions, only farmhouse dung is used, cows being partly kept for that purpose.

From In the Heart of the Vosges And Other Sketches by a "Devious Traveller" by Matilda Betham-Edwards

Our repose at Cockpit Hall was, however, much disturbed by the nightly visits of wild hogs, porcupines, wild cats, guanos, and various other animals, some of which made dreadful noises.

From Borneo and the Indian Archipelago with drawings of costume and scenery by Frank Marryat