Collocalia troglodytes
The Pygmy Swiftlet, *Collocalia troglodytes*, is a captivating aerial insectivore, renowned as the smallest swiftlet species in the world, typically measuring a mere 9 cm (3.5 inches) in length. Its diminutive size, coupled with its dark, sooty-brown plumage above and slightly paler underparts, makes it a distinctive yet often elusive sight in its native range. A subtle diagnostic feature is the faint white fringing on its undertail coverts, which can be challenging to observe in flight, part...
Primarily inhabits lowland and montane forests, limestone karsts, and associated caves, ranging from sea level up to 2,000 meters (6,500 feet) in elevation.
Exclusively insectivorous, feeding on a wide variety of aerial insects (e.g., flies, beetles, moths, termites) captured on the wing during continuous flight.
Pygmy Swiftlets are highly aerial and diurnal, spending most of their daylight hours tirelessly hawking for insects high above the forest canopy or open areas. At dusk, they retreat to the safety of dark caves, where they roost colonially, navigating with an extraordinary echolocation system. The...
The Pygmy Swiftlet is strictly endemic to the Philippines archipelago, where it is distributed across numerous islands. Its breeding range encompasses lowland and montane forests on islands such as Luzon, Mindanao, Mindoro, Palawan, Negros, Panay, Cebu, and many smaller associated islets. This sp...
Least Concern
- The Pygmy Swiftlet holds the record as the smallest swiftlet species globally, typically measuring only 9 cm (3.5 inches) in length. - It is one of the few bird species known to use echolocation, emitting rapid clicking sounds (beyond most human hearing) to navigate in the absolute darkness of ...