Wilson's phalarope

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Wilson's phalarope
Wilson's Phalarope, Oregon 03 (cropped).jpg
Female (breeding plumage)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Scolopacidae
Genus: Phalaropus
Species:
P. tricolor
Binomial name
Phalaropus tricolor
(Vieillot, 1819)
Phalaropus tricolor map.svg
Synonyms

Steganopus tricolor

Wilson's phalarope (Phalaropus tricolor) is a small wader. This bird, the largest of the phalaropes, breeds in the prairies of North America in western Canada and the western United States. It is migratory, wintering in inland salt lakes near the Andes in Argentina. [2] They are passage migrants through Central America around March/April and again during September/October. [3] The species is a rare vagrant to western Europe.

Contents

This species is often very tame and approachable. Sometimes it is placed in a monotypic genus Steganopus.

Etymology

This bird is named after Scottish-American ornithologist Alexander Wilson. [4] The English and genus names for phalaropes come through French phalarope and scientific Latin Phalaropus from Ancient Greek phalaris, "coot", and pous, "foot". Coots and phalaropes both have lobed toes. The specific tricolor is from Latin tri-, "three-", and color, coloris "colour". [5] [6]

Description

First-cycle with some retained juvenile coverts Wilson's Phalarope.jpg
First-cycle with some retained juvenile coverts

Wilson's phalarope is slightly larger than the red phalarope at about 23 cm (9.1 in) in length. It is a dainty shorebird with lobed toes and a straight fine black bill. The breeding female is predominantly gray and brown above, with white underparts, a reddish neck and reddish flank patches. The breeding male is a duller version of the female, with a brown back, and the reddish patches reduced or absent.

Measurements: [7]

In a study of breeding phalaropes in the province of Saskatchewan, Canada, females were found to average around 10% larger in standard measurements and to weigh around 30% more than the males. Females weighed from 68 to 79 g (2.4 to 2.8 oz), whereas males average 51.8 g (1.83 oz). [8]

Young birds are grey and brown above, with whitish underparts and a dark patch through the eye. In winter, the plumage is essentially grey above and white below, but the dark eyepatch is always present. The average longevity in the wild is 10 years. [9]

Ecology and status

Wilson's phalaropes are unusually halophilic (salt-loving) and feed in great numbers when on migration on saline lakes such as Mono Lake in California, Lake Abert in Oregon, and the Great Salt Lake of Utah, often with red-necked phalaropes.

When feeding, a Wilson's phalarope will often swim in a small, rapid circle, forming a small whirlpool. This behaviour is thought to aid feeding by raising food from the bottom of shallow water. The bird will reach into the outskirts of the vortex with its bill, plucking small insects or crustaceans caught up therein.

The typical avian sex roles are reversed in the three phalarope species. Females are larger and more brightly coloured than males. The females pursue males, compete for nesting territory, and will aggressively defend their nests and chosen mates. Once the females lay their eggs, they begin their southward migration, leaving the males to incubate the eggs. Three to four eggs are laid in a ground nest near water. The young feed themselves.

Although very common, this bird's population may have declined in some areas due to the loss of prairie wetland habitat. A few staging areas are of critical importance during migration.

Related Research Articles

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

A phalarope is any of three living species of slender-necked shorebirds in the genus Phalaropus of the bird family Scolopacidae.

<span class="mw-page-title-main">Wader</span> Birds of the order Charadriiformes

Waders or shorebirds are birds of the order Charadriiformes commonly found wading along shorelines and mudflats in order to forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans. The term "wader" is used in Europe, while "shorebird" is used in North America, where "wader" may be used instead to refer to long-legged wading birds such as storks and herons.

<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">Crab-plover</span> Species of bird

The crab-plover or crab plover is a bird related to the waders, but sufficiently distinctive to merit its own family Dromadidae. Its relationship within the Charadriiformes is unclear, some have considered it to be closely related to the thick-knees, or the pratincoles, while others have considered it closer to the auks and gulls. It is the only member of the genus Dromas and is unique among waders in making use of ground warmth to aid incubation of the eggs.

<span class="mw-page-title-main">Semipalmated sandpiper</span> Species of bird

The semipalmated sandpiper is a very small shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific pusilla is Latin for "very small".

<span class="mw-page-title-main">Solitary sandpiper</span> Species of bird

The solitary sandpiper is a small shorebird. The genus name Tringa is the Neo-Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific solitaria is Latin for "solitary" from solus, "alone".

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

The American golden plover, is a medium-sized plover. The genus name is Latin and means relating to rain, from pluvia, "rain". It was believed that golden plovers flocked when rain was imminent. The species name dominica refers to Santo Domingo, now Hispaniola, in the West Indies.

<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">Red knot</span> Species of bird

The red knot or just knot is a medium-sized shorebird which breeds in tundra and the Arctic Cordillera in the far north of Canada, Europe, and Russia. It is a large member of the Calidris sandpipers, second only to the great knot. Six subspecies are recognised.

<span class="mw-page-title-main">Western sandpiper</span> Species of bird

The western sandpiper is a small shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific mauri commemorates Italian botanist Ernesto Mauri (1791–1836).

<span class="mw-page-title-main">White-rumped sandpiper</span> Species of bird

The white-rumped sandpiper is a small shorebird that breeds in the northern tundra of Canada and Alaska. This bird can be difficult to distinguish from other similar tiny shorebirds; these are known collectively as "peeps" or "stints".

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

The long-billed dowitcher is a medium-sized shorebird with a relatively long bill belonging to the sandpiper family, Scolopacidae. In breeding plumage, adults are characterized by a beautiful rufous head and underparts with a darker mottled back and a large white upper rump only seen in flight. They feed in various freshwater habitats with their bill underwater in a "sewing machine" motion and are known to have an exciting mating display where males chase females in flight. The genus, Limnodromus is Ancient Greek from limne, "marsh" and dromos, "racer". The specific scolopaceus is Neo-Latin for "snipe-like", from Latin scolopax, scolopacis, a snipe or woodcock. The English name is from Iroquois and was first recorded in 1841.

<span class="mw-page-title-main">Red-necked phalarope</span> Species of bird

The red-necked phalarope, also known as the northern phalarope and hyperborean phalarope, is a small wader. This phalarope breeds in the Arctic regions of North America and Eurasia. It is migratory, and, unusually for a wader, winters at sea on tropical oceans.

<span class="mw-page-title-main">Red phalarope</span> Species of bird

The red phalarope or grey phalarope is a small wader. This phalarope breeds in the Arctic regions of North America and Eurasia. It is migratory, and, unusually for a wader, migrates mainly on oceanic routes, wintering at sea on tropical oceans.

<span class="mw-page-title-main">Ruff (bird)</span> Species of bird

The ruff is a medium-sized wading bird that breeds in marshes and wet meadows across northern Eurasia. This highly gregarious sandpiper is migratory and sometimes forms huge flocks in its winter grounds, which include southern and western Europe, Africa, southern Asia and Australia.

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

The Eurasian dotterel, also known in Europe as just dotterel, is a small wader in the plover family of birds.

<span class="mw-page-title-main">Stilt sandpiper</span> Species of bird

The stilt sandpiper is a small shorebird. The scientific name is from Ancient Greek. The genus name kalidris or skalidris is a term used by Aristotle for some grey-coloured waterside birds. The specific himantopus means "strap foot" or "thong foot".

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

Kittlitz's plover is a small shorebird in the family Charadriidae that breeds near coastal and inland saltmarshes, sandy or muddy riverbanks or alkaline grasslands with short vegetation. It is native to much of Sub-Saharan Africa, the Nile Delta and Madagascar. It is thought to be mainly polygamous and has monomorphic plumage.

<span class="mw-page-title-main">Wattled jacana</span> Species of bird

The wattled jacana is a wader in the family Jacanidae found throughout much of South America east of the Andes, as well as western Panama and Trinidad. It is the only species in the Jacanidae family with such a large distribution. Wattled jacanas have long toes and claws which help them walk through aquatic vegetation. Like the majority of species of jacanas, the female is larger than the male, and forms harems of up to 4 or 5 males at any given time. There is also a major difference in proportional development or ornamentation and defense relative to body size when compared to males.

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

The collared plover is a small shorebird in the plover family, Charadriidae. It lives along coasts and riverbanks of the tropical to temperate Americas, from central Mexico south to Chile and Argentina.

References

  1. BirdLife International (2012). "Steganopus tricolor". IUCN Red List of Threatened Species . 2012. Retrieved 26 November 2013.
  2. "500,000 birds to migrate from Utah to Argentina". The Advocate. August 4, 2013.
  3. Herrera, Néstor; Rivera, Roberto; Ibarra Portillo; Ricardo & Rodríguez, Wilfredo (2006). "Nuevos registros para la avifauna de El Salvador" [New records for the avifauna of El Salvador](PDF). Boletín de la Sociedad Antioqueña de Ornitología (in Spanish and English). 16 (2): 1–19.
  4. Szabo, M.J. (2013) Wilson's phalarope in Miskelly, C.M. (ed.) New Zealand Birds Online.
  5. "Phalarope" . Oxford English Dictionary (Online ed.). Oxford University Press.(Subscription or participating institution membership required.)
  6. Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp.  301, 390. ISBN   978-1-4081-2501-4.
  7. "Wilson's Phalarope Identification, All About Birds, Cornell Lab of Ornithology". www.allaboutbirds.org. Retrieved 2020-09-27.
  8. Colwell, Mark A.; Oring, Lewis W. (October 1988). "Breeding Biology of Wilson's Phalarope in Southcentral Saskatchewan" (PDF). The Wilson Bulletin. 100 (4): 567–582.
  9. Wasser, D. E.; Sherman, P. W. (2010). "Avian longevities and their interpretation under evolutionary theories of senescence". Journal of Zoology. 280 (2): 103. doi: 10.1111/j.1469-7998.2009.00671.x .

Further reading