134 Mr. Douglas on some Species 



dible very strong ; nostrils cushioned with fine short silky 

 feathers. Head, neck, back and wings, of a uniform light 

 brownish-gray, waved with black and reddish bars trans- 

 versely. Plumage of the head and neck short and fine, 

 with a series on the sides of the neck of long white hair- 

 like feathers, terminating on the hind part of the neck with 

 decomposed white feathers, which have linear black points, 

 exceeding the length of the plumage by two inches. Throat 

 marked with minute white spots, having a faint irregular 

 white bar running from each eye. Upper part of the 

 breast, immediately below the oesophagus, white, rigid, 

 angular at the points, as if cut with an instrument. CEso- 

 phagus orbicular, naked, yellovv. Lower part of the breast 

 bluish-gray, the points of the feathers black in the middle, 

 linear, more slender than those on the neck. Belly black, 

 with a few scattered white feathers. Vent and legs light 

 ash-gray. Tarsi one inch and three-fourths long. Toes 

 strongly pectinated, the middle one feathered to the first 

 joint. Quills l6, with dusky webs and white shafts. Sca- 

 pulars and outer coverts same colour as the back ; under 

 coverts white. Tail 20 feathers, wedge-shaped, 10 inches 

 long, somewhat rigid, of the same colour as the back : 

 under coverts black tipped with white. Length 32 inches. 

 Girth 22. Weight 6 to 8 pounds. 

 Female smaller, of the same colour as the male, with scattered 

 white small feathers. Destitute of the series of long hair- 

 like feathers on the neck, and white rigid scale-like ones 

 which are found on the breast of the male bird. Tail partly 

 wedge-shaped, somewhat acute. Flesh dark-coloured, and 

 but tolerable in point of flavour. Food, buds, leaves and 

 fruit of Purshia tridentata, Artemisia, seeds of Cactus, brown 

 and black ants, and sand bugs. 



Trachea 



