A very underrated substance and for many the last body substance to be talked about is poop. Historically bird droppings have been used and sold by many peoples. There is one very unusual ancient use for nightingale wastes.
Guano or excrement (feces and urine) from seabirds, bats and seals is big business. Guano consists of ammonia, along with uric, phosphoric, oxalic, and carbonic acids, as well as some earth salts and impurities. Guano also has a high concentration of nitrate is that make it popular for making an effective fertilizer and gunpowder ingredient due to its high levels of phosphorus and nitrogen and also its lack of odor. Super phosphate made from guano is used for aerial topdressing. Soil that is deficient in organic matter can be made more productive by addition of this manure.
How does bird poop differ from animal dung?
Mammals urinate or pee, but birds’ kidneys remove the nitrogenous wastes from the bloodstream, but instead of excreting it as urea dissolved in urine as mammals do, they excrete it in the form of uric acid. Uric acid has a very low solubility in water, so it emerges as a white paste. All waste products the uric acid and the wastes from the intestines leave the bird’s body through the same opening called the cloaca.
The best producers of guano that is high in nitrogen is the Guarney Cormorant.
Its guano is richer in nitrogen than guano from other seabirds.
Guano is still used by organic gardeners and farmers.
In ancient Japan, the Geisha women found that the bird poop facial made from powdered nightingale droppings is the best.
This ancient use of bird guano combines traditional and natural Japanese ingredients to soften, brighten and nourish the complexion. Geisha were known for their iconic porcelain complexion-clear, unblemished and pale as a camellia blossom. However, their beautiful appearance came at a price as the lead and zinc in their face powder caused chronic skin care problems until the discovery of a unique remedy -nightengale droppings
Excerpts courtesy of http://en.wikipedia.org/wiki/Guano
Excerpts courtesy of http://www.shizukany.com/geisha-facial.html
Image G. Cormorant courtesy of http://www.heptune.com/poop.html