Langbahn Team – Weltmeisterschaft

Watercock

Watercock
Male at Basai Wetlands, near Gurgaon, Haryana, India
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Rallidae
Genus: Gallicrex
Blyth, 1852
Species:
G. cinerea
Binomial name
Gallicrex cinerea
(Gmelin, JF, 1789)

The watercock (Gallicrex cinerea) is a waterbird in the rail and crake family, Rallidae that is widely distributed across Southeast Asia. It is the only member of the genus Gallicrex.

Taxonomy

The watercock was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the coots in the genus Fulica and coined the binomial name Fulica cinerea.[2] Gmelin based his description on the "crested gallinule" from China that had been described in 1785 by the English ornithologist John Latham in his A General Synopsis of Birds.[3] The watercock is now the only species placed in the genus Gallicrex that was introduced in 1852 by Edward Blyth.[4][5] The genus name combines the genus Gallus with the genus Crex. The specific epithet cinerea is from the Latin cinereus meaning "ash-grey".[6] The species is monotypic: no subspecies are recognised.[5]

Traditionally held to be closely related to moorhens (which the adult male visually closely resembles), it is actually a member of a mostly tropical Asian clade containing also Aenigmatolimnas, Amaurornis, Himantornis and Megacrex.[7]

An immature

Description

Adult male watercocks are 43 cm (17 in) long and weigh 476–650 g (1.049–1.433 lb).[8] They have mainly black-grey plumage with red legs, bill, extended frontal shield and horn. Young males are buff in colour, darkening as they mature. Their bill is yellow and their legs are green. Female birds are smaller at 36 cm (14 in) and 298–434 g (10.5–15.3 oz).[8] They are dark brown above and paler below. Their plumage is streaked and barred with darker markings. The bill is yellow and the legs are green. The downy chicks are black, as with all rails. The body of this rail is flattened laterally to allow easier passage through the reeds or undergrowth. It has long toes and a short tail.

Watercock are quite secretive, but are sometimes seen out in the open. They are noisy birds, especially at dawn and dusk, with a loud, gulping call.

Distribution and habitat

Their breeding habitat is swamps across south Asia from India, Pakistan, and Sri Lanka to south China, Korea, Japan, Philippines and Indonesia. These large rails are mainly permanent residents throughout their range.

Behaviour and ecology

Breeding

They nest in a dry location on the ground in marsh vegetation, laying 3-6 eggs.

Food and feeding

These birds probe with their bill in mud or shallow water, also picking up food by sight. They mainly eat insects and small fish and seeds. They forage on the ground.

  • Watercock in flight
    Watercock in flight
  • Watercock - rear view
    Watercock - rear view

References

  1. ^ BirdLife International (2016). "Gallicrex cinerea". IUCN Red List of Threatened Species. 2016: e.T22692789A93369824. doi:10.2305/IUCN.UK.2016-3.RLTS.T22692789A93369824.en. Retrieved 11 November 2021.
  2. ^ Gmelin, Johann Friedrich (1789). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 2 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 702.
  3. ^ Latham, John (1785). A General Synopsis of Birds. Vol. 3, Part 1. London: Printed for Leigh and Sotheby. p. 435.
  4. ^ Blyth, Edward (1852). Catalogue of the Birds in the Museum Asiatic Society. Calcutta: J. Thomas. p. 283. Although the title page is dated 1849, the book was not published until 1852. See: Dickinson, E.C.; Overstreet, L.K.; Dowsett, R.J.; Bruce, M.D. (2011). Priority! The Dating of Scientific Names in Ornithology: a Directory to the literature and its reviewers. Northampton, UK: Aves Press. p. 74. ISBN 978-0-9568611-1-5.
  5. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2022). "Flufftails, finfoots, rails, trumpeters, cranes, limpkin". IOC World Bird List Version 12.2. International Ornithologists' Union. Retrieved 14 October 2022.
  6. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 170, 107. ISBN 978-1-4081-2501-4.
  7. ^ Garcia-R, J.C.; Gibb, G.C.; Trewick, S.A. (2014). "Deep global evolutionary radiation in birds: Diversification and trait evolution in the cosmopolitan bird family Rallidae". Molecular Phylogenetics and Evolution. 81: 96–108. doi:10.1016/j.ympev.2014.09.008. PMID 25255711.
  8. ^ a b CRC Handbook of Avian Body Masses by John B. Dunning Jr. (Editor). CRC Press (1992), ISBN 978-0-8493-4258-5.
  • Birds of India by Grimmett, Inskipp and Inskipp, ISBN 0-691-04910-6
Quelle: http://en.wikipedia.org/wiki/Water_cock