duck. 347 



under parts, white ; some of the feathers on the sides tipped with 

 black ; back, rump, and upper tail coverts, black ; scapulars black 

 and white ; wing coverts black, marked with two patches of white, 

 the first on the lesser ; quills black, except seven of the middle ones, 

 which are white ; legs orange. The female is smaller; bill some- 

 what more narrow at the base, upper part of it on each side at the 

 base yellowish red ; head reddish brown, and full of feathers ; neck 

 grey, with a few dusky streaks ; breast and belly dirty white ; wing 

 coverts and scapulars dusky and ash-colour ; middle quills white, 

 the rest, and tail, black ; legs dusky orange, webs black. 



The Mori I Ion, or Grey-headed Duck of authors, has been formerly 

 considered as distinct in species, but is now known to be no other 

 than the Golden Eye, in imperfect feather. It is true, that the birds 

 known under this appellation are to be distinguished, the one sex 

 from the other, by the male having the formation of the trachea 

 precisely the same with that of the complete male Golden Eye. 



The male of this bird is said to have the head and neck 

 black, with a violet gloss ; lower part of the neck rufous brown ; 

 back, scapulars, and rump, glossy blackish brown, tinged with 

 violet ; breast brown, edged with white ; belly white, near the 

 vent mixed with brown ; quills nearly corresponding with the 

 complete bird ; legs lead-colour. 



The female has the head and neck brown, mixed before with 

 dusky ; back and scapulars bright brown, dotted with minute grey 

 points; lower part of the back and rump dark greenish brown; 

 under tail coverts white, with black bands. We might proceed yet 

 farther in the descriptions of incomplete specimens, but we trust the 

 above will be sufficient. 



The conformation of trachea in the male is different from that 

 of any other of the Duck kind ; about the middle of its length is an 

 enlargement, consisting of divers plaits, or joints placed obliquely, 

 not differing in texture from the other parts of it, and folding over 

 each other, so as to admit of being contracted into a space of 



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