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 gfray. Length, 



17K in-' 



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. 



