A substance found in great abundance on some coasts or islands frequented by sea fowls, and composed chiefly of their excrement. It is rich in phosphates and ammonia, and is used as a powerful fertilizer.
Manure, i.e., excretions, of bats and birds. Can be purchased after being dried and composted.
Bird (and bat) manure. Very valuable for its high nitrogen content.
( Going to Bat) - dung used as fertilizer
Excrement, as of bats. In certain bat caves guano can accumulate in such vast quantities that it is mined commercially for fertilizer.
manure of birds and bats that is used for fertilizer purposes. Birds of the Garden Summer Buy this Poster at AllPosters.com
the rich manure of bat dung.
the manure of birds and bats that is often used as fertilizer
a natural manure composed of chiefly of bat excrement
droppings from bats; often used as fertilizer
Accumulation of bird (or bat) faeces and the soil it interacts with.
Accumulations of dung in caves, in some places may be partly mineralised. Main source is bats.
the excrement of sea birds; used as fertilizer
the waste from bats and birds
dried bird and bat droppings; rich in phosphate and nitrogen
a substance composed chiefly of the dung of sea birds or bats, accumulated along certain coastal areas or in caves and used as fertilizer
manure from animals like birds and bats
A substance composed mainly of the feces of seabirds and used as a fertilizer.
Bird droppings utilized as fertilizer; exported from Peru as a major item of trade between 1850 and 1880; income from trade permitted end to Indian tribute and abolition of slavery. (p. 765)
The droppings of birds or bats. In some places, like penguin colonies, huge deposits of guano build up over many years. People sometimes harvest this guano to use as fertilizer for farms and gardens.
Droppings or manure of sea birds and bats, often sold as fertilizer
excrement of seabirds or bats
