364 APPENDIX 



of back, greater wing coverts and under parts white ; rest of upper 

 parts black ; bill greenish black ; legs and feet orange. Length, 20 in. 



Female. Head and upper neck brown ; collar on neck white ; 

 back blackish brown ; under parts white. 



Hab. North America. 



(a) Barrow's Golden Eye is a similar bird. Head bluish black, reflect- 

 ing green. Found only in interior, from Arctic regions south to New York, 

 Colorado, etc. 



46. Long-tailed Duck. Havelda glacialis. 

 Old Squaw. 



Male, winter plumage. Head, white, gray on sides; neck, back 

 and upper parts of back and chest white ; middle back, rump, upper 

 tail coverts and wings black; scapulars pearl gray; tail black on 

 median feathers, central pair elongated, outer feathers white ; breast 

 and upper part abdomen brown ; bill orange ; legs and feet bluish 

 gray. 



Summer. Head, neck, and upper parts sooty black, except lores ; 

 forepart, cheeks and sides of forehead mouse gray ; under parts and 

 flanks white ; bill black with broad rose-pink band crossing in front of 

 nostrils ; legs and feet pale bluish white. Length, 21 to 23 in., depend- 

 ing on tail feathers. 



Female, winter plumage. Head, neck, and lower parts white, ex- 

 cept forehead and crown dusky ; upper parts dark brown ; tail grayish 

 brown ; central pair not elongated as in male. 



Hab. Northern hemisphere. North America, Arctic Sea to 

 Florida and California. 



47. Harlequin Duck. Histrionicus histrionicus. 



Head and neck dark gray glossed with violet, marked with white 

 stripes and spots ; forehead, crown, and nape black ; upper parts slaty 

 blue, grading into blue-black on lower part of rump and upper tail 

 coverts ; breast and abdomen gray ; sides and flanks rufous ; specu- 

 lum deep bluish violet ; bill gray ; legs and feet bluish gray. Length, 



Female. Head, neck, and upper parts dark brown ; head marked 

 with white spots before and behind the eye ; breast, sides, and flanks 

 reddish brown ; abdomen white ; bill, legs and feet dark bluish gray. 

 Length, 17 in. 



Hab. North America, from Arctic regions to Middle States and 

 California. 



