Grey-rumped swiftlet

Last updated

Grey-rumped swiftlet
Collocalia marginata.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Apodiformes
Family: Apodidae
Genus: Collocalia
Species:
C. marginata
Binomial name
Collocalia marginata
Salvadori, 1882
Synonyms
  • Collocalia esculenta marginata

The grey-rumped swiftlet (Collocalia marginata) or grey-rumped swiftlet, is a small bird in the swift family Apodidae. It is endemic to some islands in the Philippines.

Contents

Its natural habitat is tropical moist lowland forests. It was previously considered a subspecies of the glossy swiftlet.

Description

The grey-rumped swiftlet is 9–10 cm (3.5–3.9 in) in length with a square tail. [1] The back and upper surface of the wings are dull dark blue with a moderate green gloss. The rump is paler due to the white margins of feathers forming the uppertail coverts . The throat and upper breast are grey with fine white scalloping merging into larger greyish chevrons over the lower breast and flanks, becoming white over the belly. There is sometimes a tuft of small feathers on the hallux , the rear facing toe. This species lacks the white spots on the inner webs of the tail feathers that are present in some Collocalia species. [2]

Taxonomy

The grey-rumped swiftlet was described by the Italian ornithologist Tommaso Salvadori in 1882 and given the current binomial name Collocalia marginata. The type locality is the island of Cebu in the Philippines. [3] [4] The specific epithet maginata is Latin for "bordered" or "edged". [5] The grey-rumped swiftlet was previously treated as a subspecies of the glossy swiftlet but was promoted to species status based on the results of a detailed analysis of the swiftlets in the genus Collocalia published in 2017. [2] [6]

There are two subspecies: [6]

Ecology and behavior

It feeds small insects in flight. Forms groups of up to 40 individuals associating with other swiftlets.

Average clutch is just 1 single egg. Not much else is known about its breeding.

Habitat and conservation

Seen in almost any habitat including coastal areas, montane forest , agricultural lands and even roads. It is still most frequently seen in forests and clearings.

International Union for Conservation of Nature does not yet recognize this as its own species. It has asssessed its parent species, the glossy swiftlet as least-concern species. [7]

Related Research Articles

<span class="mw-page-title-main">Swiftlet</span> Tribe of birds in the swift family

Swiftlets are birds from the four genera Aerodramus, Collocalia, Hydrochous and Schoutedenapus, which form the tribe Collocaliini within the swift family Apodidae. The group contains around thirty species mostly confined to southern Asia, south Pacific islands, and northeastern Australia, all within the tropical and subtropical regions. They are in many respects typical members of the Apodidae, having narrow wings for fast flight, with a wide gape and small reduced beak surrounded by bristles for catching insects in flight. What distinguishes many but not all species from other swifts and indeed almost all other birds is their ability to use a simple but effective form of echolocation to navigate in total darkness through the chasms and shafts of the caves where they roost at night and breed.

<i>Aerodramus</i> Genus of birds

Aerodramus is a genus of small, dark, cave-nesting birds in the Collocaliini tribe of the swift family. Its members are confined to tropical and subtropical regions in southern Asia, Oceania and northeastern Australia. Many of its members were formerly classified in Collocalia, but were first placed in a separate genus by American ornithologist Harry Church Oberholser in 1906.

<span class="mw-page-title-main">Himalayan swiftlet</span> Species of bird

The Himalayan swiftlet is a small swift. It is a common colonial breeder in the Himalayas and Southeast Asia. Some populations are migratory.

<span class="mw-page-title-main">Edible-nest swiftlet</span> Species of bird

The edible-nest swiftlet, also known as the white-nest swiftlet, is a small bird of the swift family which is found in Southeast Asia. Its opaque and whitish bird nest is made exclusively of solidified saliva and is the main ingredient of bird's nest soup, a delicacy of Chinese cuisine.

<i>Collocalia</i> Genus of birds

Collocalia is a genus of swifts, containing some of the smaller species termed "swiftlets". Formerly a catch-all genus for these, a number of its former members are now normally placed in Aerodramus.

<span class="mw-page-title-main">Glossy swiftlet</span> Species of bird

The glossy swiftlet is a species of swift in the family Apodidae. It is found on the Indonesian island of Sulawesi and eastwards to New Guinea, the Bismarck Archipelago and the Solomon Islands.

<span class="mw-page-title-main">Germain's swiftlet</span> Species of bird

Germain's swiftlet is a species of swift.

<span class="mw-page-title-main">Cave swiftlet</span> Species of bird

The cave swiftlet or linchi swiftlet is a species of swift in the family Apodidae. It is found on the Indonesia islands of Sumatra, Java and Bali. It is a woodland species and nests in caves. The Bornean swiftlet was considered a subspecies, but is now usually considered distinct.

The pygmy swiftlet is a species of swift in the family Apodidae. It is endemic to the Philippines.

<span class="mw-page-title-main">Pied cuckoo-dove</span> Species of bird

The pied cuckoo-dove is a species of bird in the pigeon family, Columbidae. First described by English zoologist Philip Sclater in 1877, it is endemic to the Bismarck Archipelago, where it mainly inhabits lowland and hill forests at elevations of up to 1,000 m (3,300 ft). It is a large, distinctive pigeon, with a length of 40–46 cm (16–18 in) and a weight of 279–325 g (9.8–11.5 oz). Adults are mainly black and white. The heads and underparts are whitish, while the wings, tails, and upperparts are black. Both sexes look alike. Juveniles are mainly sooty-grey in colour.

Carnaza is a barangay in the Philippines located on the island of the same name. The 173.5-hectare (429-acre) turtle-shaped island is located north of Malapascua Island which itself is north of mainland Cebu. Carnaza is then the northernmost offshore island and barangay of the municipality of Daanbantayan. The island is bordered on all sides by the Visayan Sea.

The Christmas Island swiftlet, also known as the Christmas glossy swiftlet or the Christmas cave swiftlet, is a small bird in the swift family Apodidae. It is endemic to Christmas Island, an Australian territory in the eastern Indian Ocean. It was formerly commonly treated as a subspecies of the glossy swiftlet.

The Bornean swiftlet, also referred to as the Kinabalu 'linchi' swiftlet, is a small bird in the swift family Apodidae. It is endemic to the northern mountains of the island of Borneo. It has variously been considered a subspecies of the glossy swiftlet or the cave swiftlet, and in 2008 was split from the latter as a full species C. dodgei.

<span class="mw-page-title-main">Apodinae</span> Subfamily of birds

The Apodinae are a subfamily of swifts and contain the following species:

The satin swiftlet is a small bird in the swift family Apodidae. It is endemic to the Santa Cruz Islands, Vanuatu, New Caledonia and the Loyalty Islands in the southwestern Pacific Ocean. It was formerly treated as a subspecies of the glossy swiftlet.

The drab swiftlet is a small bird in the swift family Apodidae. It is endemic to the Lesser Sunda Islands in Indonesia. It was formerly treated as a subspecies of the glossy swiftlet.

<span class="mw-page-title-main">Plume-toed swiftlet</span> Species of bird

The plume-toed swiftlet is a small bird in the swift family Apodidae. It is found on some eastern Indian Ocean islands, the Malay Peninsula, Sumatra, and lowland Borneo.

<span class="mw-page-title-main">Ridgetop swiftlet</span> Species of bird

The ridgetop swiftlet is a small bird in the swift family Apodidae. It is endemic to the Philippines.

The Tenggara swiftlet is a small bird in the swift family Apodidae. It is endemic to the western Lesser Sunda Islands of Indonesia.

References

  1. Chantler, P.; Boesman, P. (2017). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Glossy Swiftlet (Collocalia esculenta)" . Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 23 August 2017.
  2. 1 2 Rheindt, Frank E.; Christidis, Les; Norman, Janette A.; Eaton, James A.; Sadanandan, Keren R.; Schodde, Richard (2017). "Speciation in Indo-Pacific swiftlets (Aves: Apodidae): integrating molecular and phenotypic data for a new provisional taxonomy of the Collocalia esculenta complex". Zootaxa. 4250 (5): 401–433. doi:10.11646/zootaxa.4250.5.1.
  3. Salvadori, Tommaso (1882). "Descrizione di una nuova specie del genere Collocalia ed osservazioni intorno alla C. Infuscata, Salvad". Atti della Reale Accademia delle scienze di Torino (in Italian). 17 (4): 304–306.
  4. Peters, James Lee, ed. (1940). Check-list of Birds of the World. Vol. 4. Cambridge, Massachusetts: Harvard University Press. p. 229. Note that the page number given for Salvadori's article is incorrect.
  5. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 241. ISBN   978-1-4081-2501-4.
  6. 1 2 Gill, Frank; Donsker, David, eds. (2017). "Owlet-nightjars, treeswifts & swifts". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 2 August 2017.
  7. Kirwan, Guy M. (2022). "Gray-rumped Swiftlet (Collocalia marginata), version 2.0". Birds of the World. doi:10.2173/bow.gyrswi5.02species_shared.bow.project_name. ISSN   2771-3105.