ASABCORNIS SCUTULATA 41 



(8) ASARCORNIS SCUTULATA. 

 THE WHITE-WINGED WOOD-DUCK. 



Anas scutulata, MiiUer, Verh. Land en Volk. p. 159 (1839-41) (Java) ; 



Hume, S. F. viii, p. 158. 

 Casarca leucoptera, Blyth, J. A. S. B. xviii, p. 820 (1849) (Burma) ; 



Jerdon, B. of I. lii, p. 793: Hume ct Davis, S. F. vi, p. 489; Hume, 



ibid. p. 170. 

 Casarca scutulata, Hume, S. F. viii, p. 115; Hume, Cat. No. 955. 

 Anas leucoptera, Hume <f Marsh. Game-B. iii, pp. 147 & 172 ; Oates, 



B. of B. B. ii, p. 281 ; Hume, Nests and Eggs (Oates' ed.), iii, p. 287. 

 Asarcornis scutulata, Salvadori, Cat. B. M. ssvii. p. 60 ; Young, 



J. B.N. H. S. xi. p. 572 ; Stuart Baker, J. B. N. H. S. si, p. 181 ; id. 



Indian Ducks, p. 32 (1908) ; Hopwood, J. B. N. H. S. xviii, p. 433 



(1908) ; Macdonald, ibid, xix, p. 263 (1909) ; Harington, ibid. p. 213 ; 



Huggins, ibid, xxii, p. 632 (1912) ; Stevens, Ibid, xxiii, p. 733 (1915). 

 Asarcornis leucoptera, Oates, Game-B. ii, p. 139 ; Hopwood, J.B.N.H.S. 



xxi, p. 1220 (1912). 

 Asarcornis scutulatus, Blanford, Avifauna B. I. iv, p. 424. 



Description. Adult Male. — Head aud upper part of neck white, thickly 

 spotted with black, the black spots usually more numerous on the upper 

 part of the head and neck ; lower part of the neck and mantle glossy black, 

 the whole of the lower parts rich chestnut-brown, more or less mottled, 

 when freshly moulted, with glossy black on the breast and abdomen ; back, 

 rump, and upper tail-coverts olive-brown, glossed with metallic blue and 

 green ; scapularies olive-brown ; smaller upper wing-coverts white, the 

 median ones a soft blue-grey, broadly tipped with black, which is highly 

 glossed in old males ; quills olive-brown, the secondaries with the outer weba 

 bluish-gi-ey, forming a speculum ; the first inner secondary or tertiary white 

 on the outer web, and the quill next it with a large white patch on the same 

 web ; under wing-coverts and axillaries white, the former with a few brown 

 feathers mixed ; tail blackish, glossed with green in old males. 



Colours of soft parts. — The bill varies from lemon-yellow to deep orange 

 the base and tip black, and with black mottlings everywhere, generally least 

 numerous about the centre of the bill. Gonys paler, as a rule, than the 

 rest of the bill. During the breeding-season the base of the maxilla becomes 

 considerably swollen, though never becoming an actual comb, and the orange 



