Grey-rumped swiftlet
| Grey-rumped swiftlet | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Clade: | Strisores |
| Order: | Apodiformes |
| Family: | Apodidae |
| Genus: | Collocalia |
| Species: | C. marginata
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| Binomial name | |
| Collocalia marginata Salvadori, 1882
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| Synonyms | |
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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.
Its natural habitat is subtropical or tropical moist lowland forests. It was previously considered a subspecies of the glossy swiftlet.
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.[1][2] The specific epithet maginata is Latin for "bordered" or "edged".[3] 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.[4][5]
There are two subspecies:[5]
- C. m. septentrionalis Mayr, 1945 – Babuyan Island, Cagayan Island, Camiguin Island
- C. m. marginata Salvadori, 1882 – eastern and western Visayan Islands, possibly Palawan
Description
The grey-rumped swiftlet is 9–10 cm (3.5–3.9 in) in length with a square tail.[6] 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.[4]
References
- ^ 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.
- ^ 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.
- ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 241. ISBN 978-1-4081-2501-4.
- ^ a b 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.
- ^ a b Gill, Frank; Donsker, David, eds. (2017). "Owlet-nightjars, treeswifts & swifts". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 2 August 2017.
- ^ 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.
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