Species: Dendragapus obscurus
Dusky Grouse
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Galliformes
Family
Phasianidae
Genus
Dendragapus
NatureServe
Classification
Informal Taxonomy
Animals, Vertebrates - Birds - Other Birds
Formal Taxonomy
Animalia - Craniata - Aves - Galliformes - Phasianidae - Dendragapus - that does not correspond to currently recognized subspecific boundaries.
Ecology and Life History
Short General Description
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Migration
true - true - false - May make seasonal upslope-downslope migrations. In Colorado, elevational changes between breeding and wintering sites were up to 671 m (median 488 m) for males, up to 760 m (median 122 m) for females; one-way migration distance was 1-29 km (median 10.5 km) in males, 0.1-28 km (median 1.0 km) for females; males departed breeding areas from late June to late July, females from late May to late September; both arrived in wintering areas from early October to mid-November (Cade and Hoffman 1993).
Non-migrant
true
Locally Migrant
true
Food Comments
In summer feeds on a variety of berries, insects, flowers, and leaves. In the winter feeds mainly on needles and buds of conifers (Douglas-fir often important). Also eats waste grain.
Reproduction Comments
Breeding begins mid-April in south to late May in north. Female incubates 7-10, sometimes up to 16, eggs for 26 days. Nestlings precocial. Young tended by female. Yearling males often do not breed. May renest if nest destroyed.
Ecology Comments
Primarily a solitary montane species. Courting males establish a territory. In Colorado, apparently sedentary on winter range (average distance between locations 94-312 m, median 135 m, for 11 radio-marked adults) (Cade and Hoffman 1993).
Length
51
Weight
1188
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
2007-06-27
Global Status Last Changed
1996-11-25
Other Status
LC - Least concern
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=S4&CA.BC=S4&CA.NT=SU&CA.YT=S4&US.AZ=S3&US.CO=S5&US.ID=S5&US.MT=S4&US.NN=S1&US.NV=S3&US.NM=S3&US.OR=S3&US.SD=SX&US.UT=S4&US.WA=S4&US.WY=S5" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
RESIDENT: southern Yukon and extreme southwestern MacKenzie south through the mountains of interior British Columbia (excepy coast, southwestern, and south-central areas), southwestern Alberta, eastern Washington, and the Rocky Mountains to eastern Nevada, northern and eastern Arizona, (south to White Mountains), southwestern and north-central New Mexico, western and central Colorado, and (formerly) western South Dakota (AOU 1998, 2006).

