The Edible-Nest Swiftlet is a small bird found primarily in Southeast Asia. Known for its unique nesting behavior, it builds nests using its saliva, which hardens when exposed to air. These nests are highly valued in culinary traditions, particularly in the making of bird's nest soup, a delicacy in Chinese cuisine. These swiftlets are typically found in caves and coastal areas, where they can easily access the materials needed for nest construction. Their nests are harvested for consumption, leading to a lucrative industry. Conservation efforts are important to ensure the sustainability of both the swiftlets and their habitats.