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Western Lewin's rail

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The western Lewin's rail (Lewinia pectoralis clelandi), also known as Cleland's rail,[2] Lewin's rail (western) or the Lewin water rail, is an extinct and little known subspecies of Lewin's rail that was endemic to Western Australia. There are only four specimens, one in the Australian Museum and three in the British Museum.[3] The subspecific name honours Australian ornithologist John Burton Cleland.

Description

The rail had a rufous to chestnut crown and neck with heavy black streaking, grey cheeks, throat and breast, with the rest of the upper body streaked black and brown. The wings were dark brown with narrow white barring, while the belly, flanks and undertail were black, barred white or buff. The bill was long and slender, pink with a darker tip; the eyes brown to red, and the legs and feet pinkish grey.[1] The length of the rail was 21–28 centimetres (8.3–11.0 in), with a bill length of 42 mm (1.7 in).[4]

Distribution and habitat

The rail had a restricted distribution in the far south-west of Western Australia, from Margaret River to Albany, and inland as far as Bridgetown. Its core habitat was the dense vegetation fringing, or emerging from, saline, brackish and freshwater wetlands, though it could also sometimes be found in grassland or in thick coastal scrub.[1]

Conservation status

Always scarce, the subspecies became extinct because of the destruction and modification of its wetland habitats, mainly through drainage and clearance burning for agriculture and settlement.[1] There have been no reports of its existence since 1932.[4]

References

  1. ^ a b c d "Lewinia pectoralis clelandi — Lewin's Rail (western)". SPRAT profile. Department of Sustainability, Environment, Water, Population and Communities, Australia. 2012-02-16. Retrieved 2012-03-08.
  2. ^ Hume, J. P.; Walters, M., eds. (2012). Extinct Birds. London: T & AD Poyser. p. 544. ISBN 978-1-4081-5725-1.
  3. ^ Marchant, S.; Higgins, P. J., eds. (1993). Raptors to Lapwings. Handbook of Australian, New Zealand and Antarctic Birds. Vol. 2. Melbourne: Oxford University Press. p. 535. ISBN 0-19-553069-1.
  4. ^ a b Johnstone, R. E. & Storr, G. M. (1998). Handbook of Western Australian Birds. Vol. 1: Non-passerines (Emu to Dollarbird). Perth: West Australian Museum. p. 157. ISBN 0-7307-1208-7.
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Western Lewin's rail: Brief Summary

provided by wikipedia EN

The western Lewin's rail (Lewinia pectoralis clelandi), also known as Cleland's rail, Lewin's rail (western) or the Lewin water rail, is an extinct and little known subspecies of Lewin's rail that was endemic to Western Australia. There are only four specimens, one in the Australian Museum and three in the British Museum. The subspecific name honours Australian ornithologist John Burton Cleland.

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Lewinia pectoralis clelandi ( Italian )

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Il rallo di Lewin occidentale (Lewinia pectoralis clelandi Mathews, 1911) era una sottospecie di rallo di Lewin endemica dell'Australia Occidentale[2]. Poco conosciuta, ne rimangono solamente quattro esemplari impagliati, uno all'Australian Museum e tre al British Museum[3]. L'epiteto sottospecifico commemora l'ornitologo australiano John Burton Cleland.

Descrizione

Aveva la sommità del capo e il collo di colore variabile dal rossiccio al castano con strisce nere ben marcate, le guance, la gola e il petto grigi, e il resto delle regioni superiori striato di nero e marrone. Le ali erano di colore marrone scuro, con sottili strisce bianche, mentre l'addome, i fianchi e il sottocoda erano neri, barrati di bianco o camoscio. Il becco, lungo e sottile, era rosa con l'estremità più scura; gli occhi erano marroni o rossi, e le zampe e i piedi grigio-rosati[4]. Misurava 21–28 cm di lunghezza e aveva un becco di 4,2 cm[5].

Distribuzione e habitat

Occupava un areale limitato, ristretto all'estremità sud-occidentale dell'Australia Occidentale, tra il fiume Margaret e Albany, e si spingeva nell'entroterra fino a Bridgetown. Viveva unicamente nelle zone di fitta vegetazione ai margini delle zone umide, sia di acqua dolce che salmastra, ma talvolta si spingeva anche nelle praterie o nelle fitte macchie costiere[4].

Conservazione

Raro già all'epoca della sua scoperta, si estinse a causa della distruzione e della modificazione delle zone umide in cui viveva, soprattutto in seguito a lavori di bonifica e agli incendi appositamente appiccati per fare spazio a nuovi terreni agricoli e a insediamenti umani[4]. Venne avvistato l'ultima volta nel 1932[5].

Note

  1. ^ (EN) BirdLife International 2012, Lewinia pectoralis clelandi, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.
  2. ^ (EN) Gill F. and Donsker D. (eds), Family Rallidae, in IOC World Bird Names (ver 9.2), International Ornithologists’ Union, 2019. URL consultato il 12 maggio 2014.
  3. ^ Marchant, S. & Higgins, P. J., Raptors to Lapwings, Handbook of Australian, New Zealand and Antarctic Birds, vol. 2, Melbourne, Oxford University Press, 1993, p. 535, ISBN 0-19-553069-1.
  4. ^ a b c Lewinia pectoralis clelandi — Lewin's Rail (western), in SPRAT profile, Department of Sustainability, Environment, Water, Population and Communities, Australia, updated 2012-02-16. URL consultato l'8 marzo 2012.
  5. ^ a b Johnstone, R. E. & Storr, G. M., Handbook of Western Australian Birds. Vol. 1: Non-passerines (Emu to Dollarbird), Perth, West Australian Museum, 1998, p. 157, ISBN 0-7307-1208-7.

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Lewinia pectoralis clelandi: Brief Summary ( Italian )

provided by wikipedia IT

Il rallo di Lewin occidentale (Lewinia pectoralis clelandi Mathews, 1911) era una sottospecie di rallo di Lewin endemica dell'Australia Occidentale. Poco conosciuta, ne rimangono solamente quattro esemplari impagliati, uno all'Australian Museum e tre al British Museum. L'epiteto sottospecifico commemora l'ornitologo australiano John Burton Cleland.

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copyright
Autori e redattori di Wikipedia
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wikipedia IT