Species: Wilsonia pusilla

Wilson's Warbler

Species

Birds

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Terrestrial vertebrates: birds

Encyclopedia of Puget Sound

Classification

Kingdom

Animalia

Phylum

Craniata

Class

Aves

Order

Passeriformes

Family

Parulidae

Genus

Wilsonia

NatureServe

Source:
ELEMENT_GLOBAL.2.100788

Classification

Other Global Common Names

Chipe Corona Negra - paruline à calotte noire

Informal Taxonomy

Animals, Vertebrates - Birds - Perching Birds

Formal Taxonomy

Animalia - Craniata - Aves - Passeriformes - Parulidae - Wilsonia

Ecology and Life History

Migration

false - false - true - Migrants arrive in Sierra Nevada nesting areas in late May; on California coast, males begin to arrive in late March (Stewart et al. 1978). Migrants arrive in the southern winter range in mid-September, depart by mid-May (Stiles and Skutch 1989).

Non-migrant

false

Locally Migrant

false

Food Comments

Diet includes insects (wasps, ants, flies, beetles, caterpillars, etc.). Foraging occurs throughout available vegetation. Most food is obtained from leaves by gleaning while perched or flying (Stewart et al. 1978). In winter in Mexico, this warbler forages in the upper third of the canopy where the foliage is fairly dense and leaf size is small; leaves are the most common feeding substrate (Rappole and Warner 1980).

Reproduction Comments

Clutch size commonly is 3-4 in coastal California, 4-5 in the Sierra Nevada, 5-6 in Alaska. Incubation, by female, lasts 12-15 days. Young are tended by both parents, leave nest at 9-10 days in California. Some males are polygynous in the Sierra Nevada (Stewart et al. 1978).

Ecology Comments

In California, territory size in different habitats ranges from about 0.2 to 2.0 ha (Stewart et al. 1978).<br><br>Usually this warbler is solitary and territorial in winter, but it may join mixed flocks (Stiles and Skutch 1989).

Length

Weight

Conservation Status

NatureServe Global Status Rank

Global Status Last Reviewed

2009-03-24

Global Status Last Changed

1996-12-03

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 range extends from most of Alaska eastward across central Canada to Labrador and Newfoundland, and south to southern Alaska, southern California, Nevada, Utah, northern New Mexico, central Saskatchewan, southern Manitoba, northern Great Lakes region, northeastern New York, northern Vermont, central Maine, and Nova Scotia (AOU 1998). <br><br>Primary winter range extends from coastal California (rare), southern Baja California, southern Sonora, southern Texas, southern Louisiana, southern Mississippi (rare), southern Alabama (rare), and Florida south through Middle America (rarely in the Yucatan Peninsula) to Panama (AOU 1998).

Global Range Code

Global Range Description

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

ELEMENT_GLOBAL.2.100788