Species: Wilsonia pusilla

Wilson's Warbler
Species
    Kingdom
    Animalia
    Phylum
    Craniata
    Class

    Aves

    Order

    Passeriformes

    Family

    Parulidae

    Genus

    Wilsonia

    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
    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
    12
    Weight
    7
    NatureServe Global Status Rank
    G5
    Global Status Last Reviewed
    2009-03-24
    Global Status Last Changed
    1996-12-03
    Other Status

    LC - Least concern

    Conservation Status Map
    <img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=S5&CA.BC=S4&CA.LB=S5&CA.MB=S4&CA.NB=S4&CA.NF=S5&CA.NT=S5&CA.NS=S3&CA.NU=SNR&CA.ON=S4&CA.PE=S2&CA.QC=S5&CA.SK=S5&CA.YT=S5&US.AL=__&US.AK=S5&US.AZ=__&US.AR=__&US.CA=SNR&US.CO=S4&US.CT=__&US.DE=__&US.DC=__&US.FL=__&US.GA=__&US.ID=S5&US.IL=__&US.IN=__&US.IA=__&US.KS=__&US.KY=__&US.LA=__&US.ME=S3&US.MD=__&US.MA=__&US.MI=S2&US.MN=SNR&US.MS=__&US.MO=__&US.MT=S5&US.NN=__&US.NE=__&US.NV=S2&US.NH=S3&US.NJ=__&US.NM=S2&US.NY=__&US.NC=__&US.ND=__&US.OH=__&US.OK=__&US.OR=S5&US.PA=__&US.RI=__&US.SC=__&US.SD=__&US.TN=__&US.TX=S4&US.UT=S3&US.VT=S1&US.VA=__&US.WA=S5&US.WV=__&US.WI=SU&US.WY=S5" alt="Conservation Status Map" style="width: 475px; height: auto;" />
    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
    H
    Global Range Description
    >2,500,000 square km (greater than 1,000,000 square miles)
    ELEMENT_GLOBAL.2.100788