350 AtfATID^E. 



The bill is blue, equal in breadth throughout, the sides 

 being parallel ; the irides yellow ; head, cheeks, and upper 

 part of the neck all round rich Orleans plum-colour, but with 

 more of red than purple ; lower part of the neck, and upper 

 part of the breast, jet black ; all the back, scapulars, small 

 wing-coverts, and tertials, one uniform tint, produced by 

 fine black transverse lines on a ground colour of greyish- 

 white ; greater wing-coverts black ; wing primaries brown- 

 ish-black ; secondaries white, forming the speculum, and 

 tipped with black; rump and upper tail-coverts nearly 

 black ; tail-feathers dark brownish-black ; the sides below 

 the wings, and the flanks, covered with fine grey lines, on a 

 ground of white : lower part of the breast and the belly 

 mottled with pale greyish-brown and white ; vent dark grey, 

 almost as black as the under tail-coverts ; feet like the beak, 

 much smaller than these parts in the true Scaup, and 

 darker in colour, being of a more uniform bluish-black. 



In the figures given, great care has been taken to present 

 the true relative appearance of the two birds. 



I only know of this one example found in England, 

 which was purchased in Leadenhall market a few winters 

 since. The form of the trachea is unknown to me, and not 

 possessing any measurements taken before the bird was 

 preserved, I refrain from mentioning those which may not 

 exist in a state of nature. 



