Dusky Grouse — Family Tetraonidæ
297. Dendragapus obscurus. 20 inches.
Plumage gray, white and black; darkest on the back and tail, which is margined with a light gray. Female smaller, browner and more barred above. Like the Ruffed Grouse, during the mating season, the males of this species strut with tail fully spread over the back, and head thrown back until it nearly touches the tail.
Nest.—They build their nests under fallen trees or at the base of standing ones. They lay from six to ten eggs of a buff color, spotted and blotched with shades of brown (2.00 × 1.40).