With the swiftlets consuming a rich diet of shrimps and small fishes in addition to insects , these coastal bird ' s nests produced are especially higher in natural proteins and minerals 由于金絲燕除了昆蟲之外,還以豐盛的小蝦和小魚為食物,因此,這些沿海生產的燕窩其蛋白質和礦物質方面特別高。
The nests of certain swiftlet species , made largely or wholly from saliva , have been esteemed in chinese cuisine for hundreds of years , being regarded as having a wide range of tonic and medicinal values ; trade records go back to at least the seventeenth century in indonesia 燕窩主要或全部由燕子的唾液造成,是中國數百年來傳誦的珍品,認為具有多元化的補身及藥療功效。燕窩的貿易紀錄可追溯至十七世紀印尼的燕窩買賣。
Swiftlets are birds contained within the four genera Aerodramus, Hydrochous, Schoutedenapus and Collocalia. They form the Collocaliini tribe within the swift family Apodidae.