Species: Sphyrapicus thyroideus
Williamson's Sapsucker
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Piciformes
Family
Picidae
Genus
Sphyrapicus
NatureServe
Classification
Other Global Common Names
Chupasavia Oscuro - Pic de Williamson
Informal Taxonomy
Animals, Vertebrates - Birds - Other Birds
Formal Taxonomy
Animalia - Craniata - Aves - Piciformes - Picidae - Sphyrapicus - species (Cicero and Johnson 1995).
Ecology and Life History
Migration
true - true - true - Dispersal characteristics are unknown.
Non-migrant
true
Locally Migrant
true
Food Comments
This woodpecker drills holes in trees and consumes sap and phloem fibers; it also consumes insects and (in winter) fruits. Ants are the primary nestling diet. (see Dobbs et al. 1997). Insect foods also include wood-boring larvae (e.g., beetles), moths of spruce budworms, flies, and aphids (Dobbs et al. 1997).
Reproduction Comments
Clutch size is 3-7 (usually 5-6). Incubation, by both sexes, lasts 12-14 days. Young are tended by both adults; leave nest cavity about 28-35 days after hatching (Terres 1980). Individual females produce not more than one brood per year (Dobbs et al. 1997). Both sexes can breed in second calendar year (Dobbs et al. 1997).
Length
23
Weight
48
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
2011-06-20
Global Status Last Changed
1996-12-02
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S3&US.AZ=S4&US.CA=SNR&US.CO=S4&US.ID=S4&US.MT=S4&US.NN=S4&US.NV=S2&US.NM=S4&US.OR=S4&US.TX=__&US.UT=S2&US.WA=S3&US.WY=S2" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
G - 200,000-2,500,000 square km (about 80,000-1,000,000 square miles) - G - Breeding range extends from southern interior British Columbia, Idaho, western Montana, and Wyoming south in mountains to northern and east-central California, locally in southern California, central Arizona, southern New Mexico, and northern Baja California. During the nonbreeding season, the range extends primarily from southern Oregon (rare), California, Arizona, New Mexico, and western Texas (rare) southward to northern Baja California and central Mexico (Dobb et al. 1997, AOU 1998). Elevational range is mainly 1,500-3,200 meters in most of the range, 800-1,400 meters at the northern end in British Columbia (COSEWIC 2005).
Global Range Code
G
Global Range Description
200,000-2,500,000 square km (about 80,000-1,000,000 square miles)