Category
page 1Bird products
feather
thumb|Feather variations

guano
300px|thumb|The nest of the Peruvian booby is made of almost pure guano.
thumb|Human-made Bird Island (Namibia)|Guano Island near [[Walvis Bay in Namibia]]
Guano (Spanish from ) is the accumulated excrement of seabirds or bats. Guano is a highly effective fertiliser due to the high content of nitrogen, phosphate, and potassium, all key nutrients essential for plant growth. Guano was also, to a lesser extent, sought for the production of gunpowder and other explosive materials.
down feather
soft, fine feather, sometimes under larger feathers
edible bird's nest
swiftlet bird nests made from saliva and harvested for human consumption