Collocalia vestita or birds swallow is a bird with a tapered wing, long-tailed, black with the bottom of his body brown. This swallow bird lives on the beach and residential areas, inhabiting caves or large spaces, such as empty shops.
Swallow can not perch because it has very short legs so very rarely standing on the ground but can stick to the wall or roof. Swallow Bird Able to fly in dark place. Nested in groups with nests made from saliva. Swiftlet nest is widely traded for soup made or ingredients of medicines