Species: Dendroica nigrescens
Black-throated Gray Warbler
Species
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Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Passeriformes
Family
Parulidae
Genus
Dendroica
NatureServe
Classification
Other Global Common Names
Chipe Negrogris - Paruline grise
Informal Taxonomy
Animals, Vertebrates - Birds - Perching Birds
Formal Taxonomy
Animalia - Craniata - Aves - Passeriformes - Parulidae - Dendroica
Ecology and Life History
Short General Description
A small bird (wood warbler).
Migration
false - false - true - Winters north of the Isthmus; from California lowlands and southern Arizona through western and central Mexico, from southern Baja, southern Sonora and Coahuila south to Oaxaca (Dunn and Garrett 1997).
Non-migrant
false
Locally Migrant
false
Food Comments
Feeds mainly on insects (moths, butterflies, beetles, ants, etc.); may also eat leaf galls and a few spiders. Forages among leaves in bushes and trees. May forage high in trees or lower in trees and bushes. In southwestern Oregon and northwestern California use oak trees in spring for foraging on small green caterpillars (Bowles 1902).
Reproduction Comments
Clutch size is three to five (usually four). Incubation is done by female. Young are tended by both parents (Harrison 1978).
Ecology Comments
Seen singly or in pairs; may be seen in small groups while migrating.
Length
13
Weight
9
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-12-03
Global Status Last Changed
1996-12-03
Other Status
LC - Least concern
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S4&US.AZ=S5&US.CA=SNR&US.CO=S5&US.ID=S4&US.KS=__&US.NN=S5&US.NE=__&US.NV=S5&US.NM=S3&US.OK=__&US.OR=S5&US.TX=SH&US.UT=S4&US.WA=S5&US.WY=S2" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
BREEDING: southwestern British Columbia, western Washington, central Oregon, southwestern Idaho, northern Utah, southwestern Wyoming, northwestern and central Colorado, south in mountains to Arizona, eastern and southern New Mexico, northern Baja California, and northeastern Sonora, Mexico (AOU 1983, Guzy and Lowther 1997). Centers of abundance based on BBS data are in eastern Utah, southeastern Arizona, the Sierra Nevada, northwestern California, western Oregon, western Washington, and southwestern British Columbia (Sauer et al. 1997). NON-BREEDING: primarily in Baja California Sur and Pacific Slope and interior of Snora, Durango, Zacatecas, and Coahuila south to central Oaxaca. In small numbers in California and along Gulf Coast of U.S. (Guzy and Lowther 1997).