200 BAY AND SEA DUCKS 



/ 6 . Central tail-feathers longest, sharply pointed, under 



tail- coverts white 154. OLD SQUAW. 



/ 6 . Central tail-feathers not sharply pointed; under tail- 

 coverts grayish brown . . . 155. HAKLEQUIN DUCK. 

 3. Wing under 7'00. 



a. Tail-feathers stiff and narrow; upper tail-coverts very short. 

 a 1 . Upperparts mostly rich chestnut-rufous. 



a 2 . Cheeks white 167. RUDDY DUCK c? 



a 3 . Cheeks black 168. MASKED DUCK d". 



6 1 . Upperparts grayish or brownish, with sometimes rufous 



markings. 

 fe 2 . Lining of wing blackish; underparts grayish. 



168. MASKED DUCK 9 

 6 3 . Lining of wing whitish; underparts grayish. 



167. RUDDY DUCK 9 

 6. Tail-feathers normal; upper tail-coverts about half as long as tail 



153. BUFFLEHEAD 



II. Feathers at sides or top of bill extending forward generally as far ae 

 nostril. 



A. Feathers on sides of bill not reaching nostril. 



a. Nostril narrow, elongate; feathers on culmen extending forward 

 in a narrow line, a V-shaped mark on throat . 162. KING EIDER. 



6. Nostril large, rounded; feathers on culmen not extending forward 

 in a narrow line 165. WHITE-WINGED SCOTER. 



B. Feathers on sides of bill extending as far as nostril. 



a. Bare base of bill on top narrow, ending posteriorly in a sharp 

 point. 



159. GREENLAND EIDER. 

 6. Bare base of bill on top broad, the posterior end rounded. 



160. AM. EIDER 



146. Marila americana (Eyt.). REDHEAD. Ad. <?. Head and throat 

 brigl: t rufous ; lower neck, breast, back of neck and upper back black ; rest of 

 back and scapulars finely barred with wavy black and white lines of equal 

 width; wing-coverts brownish gray; upper tail-coverts black; belly white, 

 lower belly more or less finely barred with black; under tail-coverts black; 

 sides like back. Ad. 9. Upperparts dark grayish brown, darker on rump, 

 the feathers more or less margined with buffy or ashy; sides of head lighter; 

 upper throat white; neck buffy ochraceous; breast and sides grayish brown, 

 more or less washed or margined with buffy or buffy ochraceous; belly white; 

 lower belly and under tail-coverts tinged with ochraceous; an indistinct 

 bluish gray band across end of bill. L., 19'00; W., 8'90; Tar., 1'55; B., 1'85. 



Remarks. This species is frequently confused with the Canvasback, 

 from which it may be distinguished by the characters given under that 

 species. 



The female Redhead suggests the female Ring-neck in coloration, but the 

 latter is browner, and they can be also distinguished with certainty by the 

 difference in their size. 



Range. N. A. Breeds from s. B. C., cen. Alberta, cen. Sask. and sw. 

 Keewatin s. to s. Calif., Utah, s. S. D., s. Minn., and s. Wise.; winters 

 from s. B. C., Utah, N. M., Kans., Ills., Md., Del., and Mass., s. to s. L 

 Calif., cen. Mex., and Fla.; accidental in Jamaica; in migration casual in 

 Alaska and regularly on the Atlantic coast n. to s. Lab. 



Washington, common W. V. Long Island T. V., locally common, 

 Sept. 30- Jan. 9; Feb. 15-Mch. 22. Ossining, common T. V., Apl. 1-Apl. 24; 

 Oct. 12-Oct. 28. Cambridge, rather rare T. V., in fall. N. Ohio, tolerably 

 common T. V., Mch. 1-Apl. 25. SE. Minn., uncommon T. V., Apl. 14. 



Nest, of reeds, with more or less white down, in reeds, usually over 

 water. Eggs, 6-18; light olive-buff to light cream-buff, 2'40 x 1*70. Date, 

 Dodge Co., Wise., May 22, 1888; Heron Lake, Minn., May 19, 1887. 



