Pacific Swift

Pacific Swift is the largest of the Apus swifts, 17–18 cm long, averaging 44.5 g in females and 42.5 g in males. Its general shape and blackish plumage recall the common swift. Notable features include a white rump band and heavily marked underparts, a deeper tail fork and a broader rump. It tends to hunt higher than most of its relatives other than the white-throated needletail, and often travels and feeds with needletails (Wikipedia, general species account). (Wikipedia, general species account).

It is one of a group of closely related Asian swifts formerly regarded as one species. The species is found in a wide range of climatic zones and habitats. The nest is a half-cup of dry grass and other fine material that is gathered in flight, cemented with saliva and attached to a vertical surface. Subsequently, the chicks have a long but variable period in the nest before they are fully fledged. (Wikipedia, general species account).