Bristle-thighed curlew

Last updated

Bristle-thighed curlew
Bristle-thighed Curlew.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Scolopacidae
Genus: Numenius
Species:
N. tahitiensis
Binomial name
Numenius tahitiensis
(Gmelin, JF, 1789)
Numenius tahitiensis map.svg
Breeding range
Synonyms

Numenius femoralis

The bristle-thighed curlew (Numenius tahitiensis) is a medium-sized shorebird that breeds in Alaska and winters on tropical Pacific islands.

Contents

It is known in Mangareva as kivi or kivikivi and in Rakahanga as kihi; it is said to be the origin of the name for the New Zealand flightless bird kiwi [2] although some linguists like Robert Blust has proposed an alternate origin from Proto-Oceanic *kiwiwi, the Pacific golden plover, instead. [3]

Taxonomy

The bristle-thighed curlew 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 in the genus Scolopax and coined the binomial name Scolopax tahitiensis. [4] Gmelin based his description on the "Otaheite curlew" that had been described in 1785 by the English ornithologist John Latham in his A General Synopsis of Birds. "Otaheite" is a former name of Tahiti. The specimen used by Latham was supplied by the naturalist Joseph Banks. [5] Banks had accompanied James Cook on his first voyage to the south Pacific but had also received specimens from Cook's subsequent voyages. [6] The bristle-thighed curlew is now one of nine species placed in the genus Numenius that was erected in 1760 by the French scientist Mathurin Jacques Brisson in his Ornithologie. [7] [8] The name Numenius is from Ancient Greek noumenios, a bird mentioned by Hesychius. It is associated with the curlews because it appears to be derived from neos, "new" and mene "moon", referring to the crescent-shaped bill. [9] The species is considered to be monotypic: no subspecies are recognised. [8]

Description

The bristle-thighed curlew has a long, decurved bill and bristled feathers at the base of the legs. Its length is about 40–44 cm and wingspan about 84 cm (females averaging bigger than males). The size and shape are the same as the whimbrel's, and the plumage is similar, spotted brown on their upper body with a light belly and rust-colored or buffy tail. The bigger buff spots on the upper body, unmarked light belly and barely marked flanks, tail color, and pale buffy-orange rump distinguish it from the whimbrel. [10]

Distribution and habitat

Its winter habitat is tropical Oceania, and includes Micronesia, Fiji, Tuvalu, Tonga, Hawaiian Islands, Samoa, French Polynesia and Tongareva (Penrhyn atoll). There is concern over encroachment and introduced predators in their winter habitat.

Although it was described after James Cook's visits to Tahiti in the 18th century, its breeding area was not identified until 1948. [11] Nesting grounds are on the lower Yukon River and Seward Peninsula, with the birds preferring low-lying tundra near the shoreline. The bird is rarely seen near populated land masses, with only a handful of sightings in Canada, California and Oregon.

Behavior and ecology

Breeding

Nests are built in ground depressions and lined with tundra moss. Eggs are greenish with brown spots, with four to a clutch and one brood per season. Incubation lasts around 24 days, with both parents tending the nest and protecting the newly hatched chicks. [10]

Adults leave their chicks at about five weeks of age to migrate south. The chicks continue to feed until they are able to make the journey. The first leg of the migration includes a nonstop 4,000 km flight from Alaska to Laysan. They can make non-stop flights in excess of 6,000 km. [12]

Food and feeding

Bristle-thighed curlews feed on a wide variety of vegetation such as flowers and berries and on insects, sea life, and other bird's eggs, which they break open with rocks — the only tool use among shorebirds.

Related Research Articles

<span class="mw-page-title-main">Sandpiper</span> Family of birds

Sandpipers are a large family, Scolopacidae, of waders. They include many species called sandpipers, as well as those called by names such as curlew and snipe. The majority of these species eat small invertebrates picked out of the mud or soil. Different lengths of bills enable different species to feed in the same habitat, particularly on the coast, without direct competition for food.

<span class="mw-page-title-main">Curlew</span> Genus of birds

The curlews are a group of nine species of birds in the genus Numenius, characterised by their long, slender, downcurved bills and mottled brown plumage. The English name is imitative of the Eurasian curlew's call, but may have been influenced by the Old French corliu, "messenger", from courir , "to run". It was first recorded in 1377 in Langland's Piers Plowman "Fissch to lyue in þe flode..Þe corlue by kynde of þe eyre". In Europe "curlew" usually refers to one species, the Eurasian curlew.

<span class="mw-page-title-main">Eurasian curlew</span> Species of bird

The Eurasian curlew or common curlew is a very large wader in the family Scolopacidae. It is one of the most widespread of the curlews, breeding across temperate Europe and Asia. In Europe, this species is often referred to just as the "curlew", and in Scotland known as the "whaup" in Scots.

<span class="mw-page-title-main">Eurasian whimbrel</span> Species of bird

The Eurasian whimbrel or common whimbrel is a wader in the large family Scolopacidae. It is one of the most widespread of the curlews, breeding across much of subarctic Asia and Europe as far south as Scotland. This species and the Hudsonian whimbrel have recently been split, although some taxonomic authorities still consider them to be conspecific.

<span class="mw-page-title-main">Grey plover</span> Species of bird

The grey plover or black-bellied plover is a large plover breeding in Arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding.

<span class="mw-page-title-main">Pacific golden plover</span> Species of bird

The Pacific golden plover is a migratory shorebird that breeds during Alaska and Siberia summers. During nonbreeding season, this medium-sized plover migrates widely across the Pacific.

<span class="mw-page-title-main">Greater yellowlegs</span> Species of bird

The greater yellowlegs is a large shorebird in the family Scolopacidae. It breeds in central Canada and southern Alaska and winters in southern North America, Central America, the West Indies and South America.

<span class="mw-page-title-main">Short-billed dowitcher</span> Species of bird

The short-billed dowitcher, like its congener the long-billed dowitcher, is a medium-sized, stocky, long-billed shorebird in the family Scolopacidae.

<span class="mw-page-title-main">Marbled godwit</span> Species of bird

The marbled godwit is a large migratory shorebird in the family Scolopacidae. On average, it is the largest of the four species of godwit.

<i>Pluvialis</i> Genus of birds

Pluvialis is a genus of plovers, a group of wading birds comprising four species that breed in the temperate or Arctic Northern Hemisphere.

<span class="mw-page-title-main">Grey-headed lovebird</span> Species of bird

The gray-headed lovebird or Madagascar lovebird is a small species of parrot of the lovebird genus. It is a mainly green parrot. The species is sexually dimorphic and only the adult male has grey on its upper body. They are native on the island of Madagascar and are the only lovebird species which are not native on the African continent. They are the smallest of the lovebird species. It is rarely seen in aviculture and it is difficult to breed in captivity.

<span class="mw-page-title-main">Far Eastern curlew</span> Species of bird

The Far Eastern curlew is a large shorebird most similar in appearance to the long-billed curlew, but slightly larger. It is mostly brown in color, differentiated from other curlews by its plain, unpatterned brown underwing. It is not only the largest curlew but probably the world's largest sandpiper, at 60–66 cm (24–26 in) in length and 110 cm (43 in) across the wings. The body is reportedly 565–1,150 g (1.246–2.535 lb), which may be equaled by the Eurasian curlew. The extremely long bill, at 12.8–20.1 cm (5.0–7.9 in) in length, rivals the bill size of the closely related long-billed curlew as the longest bill for a sandpiper.

<span class="mw-page-title-main">Christmas sandpiper</span> Extinct species of bird

The Christmas sandpiper or Kiritimati sandpiper was a small shorebird. It became extinct some time in the first half of the 19th century. It was endemic to Christmas Island, since 1919 part of Kiribati. It is known solely from a single contemporaneous illustration, and a description by William Anderson, both made during the third circumnavigation voyage commanded by Captain James Cook, which visited the atoll of Christmas Island between 24 December 1777 and 2 January 1778.

<i>Jacana</i> (genus) Genus of birds

Jacana is the genus comprising the two jacanas of the Americas: the northern jacana, Jacana spinosa, and the wattled jacana, Jacana jacana.

<span class="mw-page-title-main">James Campbell National Wildlife Refuge</span> National Wildlife Refuge on the island of Oʻahu, Hawaii, U.S.

James Campbell National Wildlife Refuge is a National Wildlife Refuge on the island of Oʻahu, Hawaii. It was established in 1976 to permanently protect an ecologically-intact unit and to provide habitat for native and migratory fauna and native flora. It established critical habitat for Hawaii's four endangered waterbirds, the ʻalae kea, koloa maoli, ʻalae ʻula, and āeʻo and many migratory seabirds, endangered and native plant species, and the endangered Hawaiian monk seal and green sea turtle. It also provides increased wildlife-dependent public uses and flood control within the refuge and the local community.

References

  1. BirdLife International (2020). "Numenius tahitiensis". IUCN Red List of Threatened Species . 2020: e.T22693182A181357867. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22693182A181357867.en . Retrieved 19 November 2021.
  2. "kiwi". Polynesian Lexicon Project Online. POLLEX-Online. 2010. Archived from the original on 24 July 2011. Retrieved 7 January 2011.
  3. Blust, Robert; Trussel, Stephen (2010). "*kiwiwi: shore bird - sandpiper, Pacific Golden Plover". Austronesian Comparative Dictionary. Max Planck Institute for Evolutionary Anthropology. Retrieved 8 November 2022.{{cite web}}: CS1 maint: url-status (link)
  4. 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. 656.
  5. Latham, John (1785). A General Synopsis of Birds. Vol. 3, Part 1. London: Printed for Leigh and Sotheby. pp. 122–123, No. 4.
  6. Medway, D.G. (2009). "The fate of the bird specimens from Cook's voyages possessed by Sir Joseph Banks". Archives of Natural History. 36 (2): 231–243. doi:10.3366/E0260954109000965.
  7. Brisson, Mathurin Jacques (1760). Ornithologie, ou, Méthode contenant la division des oiseaux en ordres, sections, genres, especes & leurs variétés (in French and Latin). Vol. 1. Paris: Jean-Baptiste Bauche. Vol. 1, p. 48, Vol. 5, p. 311.
  8. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2022). "Sandpipers, snipes, coursers". IOC World Bird List Version 12.2. International Ornithologists' Union. Retrieved 3 November 2022.
  9. Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p.  276. ISBN   978-1-4081-2501-4.
  10. 1 2 Marks, J.S.; Tibbitts, T.L.; Gill, R.E.; McCaffery, B.J. (2020). Poole, A.F.; Gill, F.B. (eds.). "Bristle-thighed Curlew (Numenius tahitiensis), version 1.0" . Birds of the World. Ithaca, NY, USA: Cornell Lab of Ornithology. Retrieved 3 November 2022.
  11. Allen, A.A.; Kyllingstad, H. (1949). "The eggs and young of the bristle-thighed curlew" (PDF). The Auk. 66 (4): 343–350. doi:10.2307/4080277. JSTOR   4080277.
  12. Marks, J.S.; Redmond, R.L. (1994). "Migration of bristle-thighed curlews on Laysan Island: timing, behavior and estimated flight range" (PDF). The Condor. 96 (2): 316–330. doi:10.2307/1369317. JSTOR   1369317.