436 



APPENDIX. 



back and upper part of the breast, black ; abdomen 

 white, darker towards the vent, where it is barred 

 with undulating lines of dusky ; flanks grey, closely 

 barred with black ; scapulars the same ; primaries 

 brownish-grey ; secondaries lighter ; back greyish- 

 brown, barred with fine lines of white ; rump and 

 upper tail coverts blackish-brown ; tail feathers 

 greyish-brown, lighter at the base; lower tail coverts 

 brownish-black, rather lighter than the upper ; length 

 twenty inches ; wing nine and a half. Female about 

 two inches smaller, with the head, neck, breast, 

 and general color of the upper parts brown ; darker 

 on the upper part of the head, lighter on the back ; 

 bill, legs, and feet, similar to those of the male. 



This duck, as it is scarcely distinguishable from 

 the canvas-back, and has mainly the same habits, is 

 but little inferior to that incomparable bird. 



BKOAD-BILL. 



Blue Bill. Scaup, Black Head, Raft Duck. 

 Fuligula Marila, Linn. 



Specific Character. The head and neck all round, 

 with the fore part of the brenst and fore part of back, 

 black ; the sides of the head and the sides and hind 

 part of the neck dark green, reflecting purple ; length 

 of bill, when measured along the gap, two inches and 

 five-sixteenths ; length of tarsi one inch and three- 

 eighths ; length from the point of the bill to the end 

 of the tail nineteen inches; wing eight inches and 

 five-eighths ; a broad white band crossing the secon- 



