The edible-nest swiftlet uses saliva alone to construct their nests. Many locals still practice manual climbing of the limestone caves to gather swiftlet nests. The Atiu swiftlet or kopeka ("Aerodramus sawtelli") nests inside Anatakitaki Cave. The Indian swiftlet, or Indian edible-nest swiftlet, ("Aerodramus unicolor") is a small swift. The cave swiftlet is native to Malaysia and Indonesia. It often feeds in large flocks with other species of swiftlet and swallow. The Palawan swiftlet ("Aerodramus palawanensis") is a species of swift in the family Apodidae. Around the year 2000, Sitiawan residents began to be involved in swiftlet bird breeding activities. The mascot of the games is a swiftlet named Chim Yen. Some taxonomists consider it to be a subspecies of the uniform swiftlet. The specific epithet "linchi" is the Javanese word for a swiftlet. The Mariana swiftlet is considered to be Endangered. The Mangaia swiftlet is a recently extinct species known only from fossils. It was formerly lumped with the island swiftlet ("Aerodramus inquietus"). Swiftlets have four toes, except the Papuan swiftlet which lacks the hallux (back toe).