226 steller's western duck. 



tertial feather white on the inner web, rich blue on the outer web, and curved down- 

 wards towards the end; wing coverts, white; scapulars elongated, and like the tertials, 

 with the narrow inner web, white; the broader outer web, rich blue; chin and throat, 

 rich brown; below the broad bluish-black collar is a narrow collar of white, the colour 

 extending over the sides of the neck to each wing; just below the point of the wing* 

 some of the white feathers have black at the tip, forming a dark patch ; . middle of 

 breast and belly, rich chestnut brown ; passing off into a buff colour on the front, sides, 

 and flanks; vent and under tail coverts, dark brown; legs, toes, and their membranes, 

 black; the hind toe with a deep lobe." — Yarrell. 



The female "has the greater coverts and the secondaries tipped with white, forming 

 two bars, enclosing between them a bluish-black speculum." 



The male measures nineteen inches in length. 



