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The edible-nest swiftlet (Aerodramus fuciphagus), also known as the white-nest swiftlet, is a small bird of the swift family which is found in Southeast Asia. Its opaque and whitish bird nest is made exclusively of solidified saliva and is the main ingredient of bird's nest soup , a delicacy of Chinese cuisine.
The nests of Aerodramus swiftlets are constructed with saliva as a major component. In two species, saliva is the only material used, and the nests are collected for the famous Chinese delicacy 'bird's nest soup', the over-collection of which puts pressure on the swiftlet populations.
The swift family remains one of the more complicated groups of birds in taxonomic research, but the swiftlet tribe is a rather well-defined group. Its internal systematics is confusing; the plumage is usually dull, with shades of black, brown, and gray; from their outward appearance, most species are very similar.
Edible bird's nests, also known as swallow nests (Chinese: 燕窝; pinyin: yànwō), are bird nests created from solidified saliva by edible-nest swiftlets, Indian swiftlets and other swiftlets of the genera Aerodramus, Hydrochous, Schoutedenapus and Collocalia, which are harvested for human consumption. Edible swiftlet nests, packaged for sale
The Himalayan swiftlet has a twittering chit-chit roosting call, and also has a piercing teeree-teeree-teeree call.. What distinguishes many, but not all, swiftlet species from other swifts and indeed almost all other birds (the oilbird being an exception) is their ability to use a simple but effective form of echolocation to navigate through the darkness of the caves where they roost at night ...
The Indian Swiftlet or Indian Edible-Nest Swiftlet (Aerodramus unicolor) is a small swift. It is a common resident colonial breeder in the hills of Sri Lanka and south west India. The half-cup nest is built on a vertical surface, often in a cave. The male swift uses thick saliva to construct the white, shiny nest into which two eggs are laid.
The Philippine swiftlet (Aerodramus mearnsi, formerly Collocalia mearnsi) is a species of swift in the family Apodidae. It is endemic to the Philippines . Its natural habitats are or tropical dry forests , tropical moist lowland forests, and tropical moist montane forests .
The glossy swiftlet (Collocalia esculenta) is a species of swift in the family Apodidae. It is found on the Indonesian island of Sulawesi and eastwards to New Guinea , the Bismarck Archipelago and the Solomon Islands .