About Aerodramus fuciphagus (Thunberg, 1812)
The edible-nest swiftlet, with the scientific name Aerodramus fuciphagus (Thunberg, 1812), is a medium-sized salangane that generally reaches 14 cm (5.5 in) in body length. Its slender body has blackish-brown coloration on the upperparts, while underparts range in color from white to blackish-brown. The tail is short with a slight notch, and both the bill and feet are black. Its legs are very short, and the tarsi are usually unfeathered or lightly feathered. This species weighs between 15 and 18 g (0.53 to 0.63 oz), and has long, narrow wings. When in flight, its swept-back wings have a crescent-like shape. Several subspecies differ in coloration: the subspecies micans is paler and greyer than the nominate subspecies; vestitus is dark, with a rump that is less obviously paler; subspecies germani has much paler underparts and a broad whitish rump; and amechanus is similar to germani, but has a greyer rump.