20 
allen’s naturalist’s library. 
lish name of the “Golden-eyes,” belongs to the plain-winged sec- 
tion of the Diving Ducks, in which the quills are uniform and 
have no light “ mirror ” on the inner webs. They differ from the 
Eider-Ducks in having no patches of stiff feathers on the head, 
which is very fully crested. The tail is of moderate length, 
and its feathers are rounded ; the edges of the upper mandible 
are not bent inwards ; and there is a distinct difference in the 
colour of the sexes, the males having a glos.sy black head, 
and the females a brown one (cf. Salvad. Cat. B. Brit. Mus. 
xxvii. p. 326). 
1. THE GOLDEN-EYED DUCK. CLANGULA CLANGULA. 
Ams clangitia, Linn. Syst. Nat. i. p. 201 (1766). 
Anas glaucion, Linn. iom. cit. p. 201 (1766). 
Clangula chrysophthalma, Macg. Br. B. v. p. 174 (1852). 
Clangula glaucion, Dresser, B. Eur. vi. p. 595, pi. 440 (1875) ; 
B. O. U. List Br. B. p. 13 1 (1883) ; Saunders, ed. Yarr. 
Br. B. iv. p. 435 (1885) ; id. Man. Br. B. p. 429 (1889)5 
Salvad. Cat. B. Brit. Mus. xxvii. p. 376 (1895). 
Fuligula clangula, Seebohni, Br. B. iii. p. 590 (1885)5 Lilford, 
Col. Fig. Br. B. part xi. (1889). 
Adult Male. — General colour above black, including the whole 
of the back and rump 5 scapulars white or half black and 
white, giving a streaked appearance to the sides of the back, 
the external scapulars while with black margins 5 wing-covorts 
pure white, except those near the edge of the wing, which 
are black 5 the greater series white with a concealed black 
bar at the base 5 bastard- wing, primary-coverts, and quids 
black 5 secondaries pure white, the inner ones velvety-black 
with a green gloss 5 upper tail-coverts and tail cindery-grey, 
the latter fringed with whity-brown at the ends 5 head fully 
crested metallic - green, as also the nape and entire sides 
of the face, with purplish reflections under certain lights 5 at 
the base of the bill a large white spot 5 throat velvety-black 
with a shade of bronzy-green 5 rest of the under surface from 
the lower throat downwards pure white, the feathers on the 
thighs and vent dusky blackish, the flank-feathers edged with 
black on their inner webs, imparting a streaked appearance 5 
