spruce grouse in denali national park alaska

alaska america arboreal berries bird birders brown canada canadensis canadiense chickenlike coniferous denali eater evergreen eyebrow falcipennis feathers flightless fool forage forest galliformes gallo ground grouse hens male mus national nature north park partridge patterned phasianidae plant plumage preserve red shrubs spotted spruce swamp tétras watching western wilderness wildlife woods