Species: Spizella arborea

American Tree Sparrow
Species
    Kingdom
    Animalia
    Phylum
    Craniata
    Class

    Aves

    Order

    Passeriformes

    Family

    Emberizidae

    Genus

    Spizella

    Classification
    Other Global Common Names
    bruant hudsonien
    Informal Taxonomy
    Animals, Vertebrates - Birds - Perching Birds
    Formal Taxonomy
    Animalia - Craniata - Aves - Passeriformes - Emberizidae - Spizella - See Zink and Dittmann (1993) for a hypothesis for evolution in the genus SPIZELLA. See Dodge et al. (1995) for a comparison of phylogenies derived from two molecular data sets for the genus SPIZELLA; among other results, monophyly of SPIZELLA including the American tree sparrow was supported.
    Short General Description
    A small bird (sparrow).
    Migration
    false - false - true - Migrates northward in flocks through U.S. in March-April (Terres 1980); arrives in breeding areas in northern Alaska and northwestern Canada late May-early June, departs by mid-September (Johnson and Herter 1989).
    Non-migrant
    false
    Locally Migrant
    false
    Food Comments
    Feeds primarily on seeds, but also eats some insects. Forages on the ground.
    Reproduction Comments
    Eggs laid May-July (begins nesting in mid-June in northern Alaska and northwestern Canada). Clutch size 3-5, sometimes 6. Incubation 12-13 days (Terres 1980). Young tended by both adults, usually leave nest 9-10 days after hatching, unable to fly for 5-6 more days.
    Ecology Comments
    During winter often seen in groups of 4-8 birds.
    Length
    16
    Weight
    20
    NatureServe Global Status Rank
    G5
    Global Status Last Reviewed
    1996-12-04
    Global Status Last Changed
    1996-12-04
    Other Status

    LC - Least concern

    Conservation Status Map
    <img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S5&CA.LB=S5&CA.MB=S5&CA.NB=__&CA.NF=S2&CA.NT=S3&CA.NS=__&CA.NU=SNR&CA.ON=S4&CA.PE=__&CA.QC=S5&CA.SK=S5&CA.YT=S5&US.AL=__&US.AK=S5&US.AZ=__&US.AR=__&US.CA=__&US.CO=__&US.CT=__&US.DE=__&US.DC=__&US.ID=__&US.IL=__&US.IN=__&US.IA=__&US.KS=__&US.KY=__&US.ME=__&US.MD=__&US.MA=__&US.MI=__&US.MN=__&US.MS=__&US.MO=__&US.MT=__&US.NN=__&US.NE=__&US.NV=__&US.NH=__&US.NJ=__&US.NM=__&US.NY=S4&US.NC=__&US.ND=__&US.OH=__&US.OK=__&US.OR=__&US.PA=__&US.RI=__&US.SD=__&US.TN=__&US.TX=__&US.UT=__&US.VT=__&US.VA=__&US.WA=__&US.WV=__&US.WI=__&US.WY=__" alt="Conservation Status Map" style="width: 475px; height: auto;" />
    Global Range
    BREEDING: Alaska and across central Canada, from northern Yukon and Mackenzie east to Labrador. NON-BREEDING: south-coastal and southeastern Alaska (rarely), southern Canada south to northern California, central Nevada, northern and east-central Arizona, central and southeastern New Mexico, northern Texas, Arkansas, Tennessee, and North Carolina (casually farther south) (AOU 1983).
    ELEMENT_GLOBAL.2.105457