A cewar ƙamus na Turanci na Oxford, swiftlet ƙaramin tsuntsu ne na dangin gaggawa, Apodidae, wanda ake samu a yankuna masu zafi da na wurare masu zafi na Asiya, Afirka, da Amurka. Swiftlet ya shahara wajen gina gida ta hanyar amfani da miya da sauran kayayyaki, wanda ke da dadi a wasu al'adu, kuma ana amfani da shi wajen maganin gargajiya na kasar Sin. Swiftlets kuma a wasu lokuta ana kiran su "masu cin abinci-nest swiftlets" saboda amfanin dafuwar gidajensu.