Skip to main content

Sooty Grouse Identification

Looking for ID Help?

Our free app offers quick ID help with global coverage.

Try Merlin Bird ID

The Four Keys to ID

  • Size & Shape

    A heavyset, chickenlike bird with a short bill, short, strong legs, and a medium-length tail that can be fanned into a semicircle.

    Relative Size

    Larger than a Spruce Grouse, smaller than a Wild Turkey.

    Relative Sizebetween crow and goosebetween crow and goose

    Measurements
    • Both Sexes
      • Length: 15.8-19.7 in (40-50 cm)
      • Weight: 26.5-45.9 oz (750-1300 g)

    Shape of the Sooty Grouse© David Lawrence / Macaulay Library
  • Both male and female are camouflaged with patterns of brown, gray, white, and black. Males have dark gray tails and paler gray underparts. In display, males reveal yellowish air sacs on the neck, and their eye combs swell and become a rich yellow-orange.

    Color pattern of the Sooty Grouse
    © Grace Oliver / Macaulay Library
  • Sooty Grouse spend much of the day resting and feeding. They forage on the ground for plants and insects, as well as in trees where they take leaves, needles, and buds, especially in winter. Males display in early spring from perches in trees, making short flights and performing strutting displays on the ground.

  • Mountain and coastal coniferous forests (hemlock, fir, Douglas-fir, pine), mostly where there are openings, as well as subalpine forests, especially ones with extensive grass and shrub understory.

    © Evan Barrientos / Macaulay Library

Regional Differences

Ornithologists recognize four subspecies, which differ mostly in the shape of their tail feathers and the pattern on those feathers. In the northernmost, sitkensis, of Alaska and British Columbia, males have a narrow gray tail band and females are rather rusty above. In fuliginosus, found on coastal slopes of British Colombia to California, females are much grayer above. On the eastern slopes of the coastal mountain ranges, from Washington to Nevada, subspecies sierrae has a broad gray tail band. And from Fresno County south to Kern County, California, the similar howardi has an even broader tail band and longer tail. The northern subspecies tend to be darker (especially males) than the southern.