Huge gamebird of conifer forest, adjacent moorland, and clearings with shrubs, mainly in wilder areas. Mostly elusive, but occasional males go "rogue" and attack hikers. Groups of males display just after dawn in early spring, holding their tail raised and fanned like a turkey. Massive male is blackish overall with long tail, white shoulder spot. Female appreciably smaller than male, told from smaller female Black Grouse by unbarred rusty breast and bright rusty tail with black bars.