Species: Tringa semipalmata

Willet

Species

Birds

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Salish Sea-reliant birds

Terrestrial vertebrates: birds

Encyclopedia of Puget Sound

Classification

Kingdom

Animalia

Phylum

Craniata

Class

Aves

Order

Charadriiformes

Family

Scolopacidae

Genus

Tringa

NatureServe

Source:
ELEMENT_GLOBAL.2.100605

Classification

Other Global Common Names

Maçarico-de-Asa-Branca - Playero Pihuiuí, Playero Ala Blanca - chevalier semipalmé

Informal Taxonomy

Animals, Vertebrates - Birds - Shorebirds

Formal Taxonomy

Animalia - Craniata - Aves - Charadriiformes - Scolopacidae - Tringa - (AOU 1998).

Ecology and Life History

Short General Description

A bird (shorebird).

Migration

false - false - true - Northern interior breeding populations make extensive migrations; arrive in northern breeding areas April-May, depart by September-October (Bent 1929); departure from breeding areas may begin June-July. Migratory status of coastal breeding populations in southeastern U.S.? (probably fairly sedentary). Migrates mainly through coastal areas. Migrates through Costa Rica August-September and late March-late May (Stiles and Skutch 1989). Arrives in South America by September, most depart by end of April (Hilty and Brown 1986). In northeastern Venezuela, earliest migrants arrived in late July, numbers peaked by late October; migrants departed mainly between early March and mid-April; some remained during the summer (Rompre and McNeil 1994).

Non-migrant

false

Locally Migrant

false

Food Comments

Eats mainly small invertebrates (crustaceans, mollusks, insects, worms) obtained from surface, in mud, and in shallow water.

Reproduction Comments

Arrive on Saskatchewan breeding grounds from late April to mid-May, and depart from mid-August to early September (Maher 1974). In the northern Great Plains, breed from early May through late July, with broods present from about early June until late July (Stewart 1975, Kantrud and Higgins 1992, Sedivec 1994). Ryan et al. (1981) reported two cases of renesting after initial nests were destroyed. In Saskatchewan, adults of both sexes and juvenile females exhibited breeding-site fidelity (Colwell and Oring 1988b).

Ecology Comments

Territories are large and include both feeding and nesting areas. In North Dakota, mean territory size was 44.3 hectares (Ryan and Renken 1987). Nonbreeding: forages singly or small loose groups; gathers in large flocks to sleep or rest (Stiles and Skutch 1989).

Length

Weight

215

Conservation Status

NatureServe Global Status Rank

Global Status Last Reviewed

1996-11-25

Global Status Last Changed

1996-11-25

Other Status

LC - Least concern

Distribution

Conservation Status Map

Global Range

H - >2,500,000 square km (greater than 1,000,000 square miles) - H - BREEDING: locally from eastern Oregon, southern Idaho, central Alberta, southern Saskatchewan, and southwestern Manitoba south to northeastern California, western Nevada, central Utah, northern Colorado, western and northern Nebraska, and eastern South Dakota (formerly in Minnesota and Iowa); locally along Atlantic-Gulf coast from southern New Brunswick, Prince Edward Island, and Nova Scotia south to southern Florida and west to southern Texas and Tamaulipas; the Bahamas; Antilles (Cuba, St. Croix and Anegada, Antigua, Guadeloupe); Cayman Islands; and Los Roques off Venezuela (AOU 1998). NON-BREEDING: north to California and Virginia, south along coasts to South America (to Galapagos Islands, central Chile, Uruguay, and southern Brazil) (AOU 1998). Most abundant in coastal Suriname and north-central Brazil (Morrison and Ross 1989). Nonbreeders may summer in winter range.

Global Range Code

Global Range Description

>2,500,000 square km (greater than 1,000,000 square miles)

ELEMENT_GLOBAL.2.100605