lie 

 Ml 



lie 

 |t- 



SEA DUCKS. 109 



b. Whole head and throat brown, sharply defined from the gray or white 

 neok ; a white patch (wpeeulam) in the winj^. 



i>. Nostril nearer the tip than the base of the bill. 



151. Am. Goli>en-eye 9 . 

 6'. Nostril in the middle of tlie bill . 152. Baukow's Goldkn-kvk 9. 



c. Wl';?le liead and neck black l(i;i. Am. Scotkk S . 



d. A wliite patch on tlie back of the head and another on the back of the 

 neck KJO. Sikk Scotkk S . 



e. Middle of crown black, bordered by chestnut ; front half of the face 

 ''^■I'i^e 1,5.1. llAui-EytiN Dick S . 



/. Head and neck whitish, grayish, or brownish ; no white in the wing, 

 /«. Bill over 1-25. 



y*. Fcathei-s on culnien reaching much farther forward than those at 



the sides of the bill 166. Sirf Scoteh 9 . 



/». Feathers on oulmen reaching little if any beyond those at the sides 



of the bill HJ3. Am. Scoteh 9 , 



gK Bill under 1-25. 

 (J*. Central tail-feathers longest, sharply pointed , uiuler tail-coverts 



white 154. <Jm) Swi aw, 



g*. Central tail-feathers not sharply pointed ; under tail-covcrts gray- 

 ish brown 155, llAKLEyuix Dick. 



C. Wing under 7-00, 



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

 o*. Upper parts mostly rich chestnut-rufous. 



a'. Cheeks wliite . 1(17. Kiddy Ditk ^. 



««. Cheeks black 108. .Masked I) iik S, 



i>. Upper parts grayish or brownish, with somctin:es rutbus markings, 

 i*. Lining of wing blackish ; under parts grayish. 



I'i8. Masked Duck 9. 

 b*. Lining of wing whitish ; under parts grayish. 



107. RiDDv DrcK 9 . 



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



153. BlFFI-EIlEAD. 



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



A, Featiiers 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, Kino Kidkh, 



b. Nostril large, rounded; featiiers on culmen not extending furward it. a 

 narrow line 16."). WiiriE-wiNUEU ScoTEit, 



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



«, Bare base of bill on top narrow, ending posteriorly in a sliarp point, 



15!t, (Jkee.nland EiDEii, 

 b. Bare base of bill on top broad, the posterior end roundeii. 



160. Am. Kidek. 



The RfKors-cnESTED DrcK (/^5. Nettn rufina) is an Old-Worid species 

 which has been taken once in America, The record is based on an imiiiaturo 

 male found in Fulton Market, New York city, which was suppced to have 

 been shot on Long Island, 



