(318) 



GENUS FULIGULA. 



SEA DUCKS. 



[In this class, the hrad is rather larger, nccit rather shorter and thiclicr, 

 than in the prereding Geims, (/Ires.) |.h:magc more i!ri;sr. feet slroiger, ai.d 

 the hind toe with a brojd appendage, which is the principal distiiitlio:!.] 



FULIGULA VALISNERL\NA— WILSON. 



CANVASS DACK DUCK. 



Canvafsbatkcd Duck, Anas valisncria, Wil?. Amcr. Orn. 

 Fuligiild valisiieriii, li )iii!(>. Syii. 



Fdiil^iila \alisnrriu, Cllllva^s■llack Deck, Svv. & Rich. 

 Ciitivas.-i-back Dwck, I'^uliguia viihsiieriaua, .\ud. Orn. Biog. 

 Udnvass backed Djck, Null. Mjii. 



Specific Characler — Bi 1 black, thclcnglli abaiit llirco inches and 

 very high a' ihe base ; fore part of ihc head ai d tlie ihroat dusky ; 

 iridcs deep red; breast brownish-black. Adult male with the 

 forehead, loral space, ihroat and upper part of the head dusky, 

 sides of the head, neck all round for nearly ihe entire length, red- 

 dish chestnut ; lower neck, fore part of the breast aud back- 

 black, rest of the back white, clo.sely marked with undulating lines 

 of black ; rump and upper lail-coverts blackish ; wing-coverts 

 gray, speckled with blackish ; primaries and secondaries light 

 slate color. Tail short, the feathers pointed ; lower part of the breast 

 and abdomen white ; flanks same color, finely pencilled with 

 dusky ; lower tail-coverts blackish-brown, intermixed with white. 

 Lengih twenty-two inches, wing nine and one quarter. 



Female, upper parts grayisli-brown ; neck, sides and abdomen 

 the same ; upper part of the breast brown ; belly white, pencilled 

 with blackisli ; rather smaller than the male, with the crown 

 blackish-brown. 



This species is not found in any part of Europe. Its richly fla- 

 vored flesh is admitted by all to be superior to any other of this 



