266 INDIAN DUCKS 



(10) NYROCA NYROCA NYROCA. 

 THE WniTE-EYED rOCHAUD OR WIIITE-EYE. 



Aythya nyroca, .IcnJon, B. of I. iii, i>. 813; IIiiiiic, Xcsts and E'lgs, 

 p. 615 ; id S. F. i, p. 265 ; Adam, ibid. p. 102 ; Butler, ibid, iv, 

 p. :iO; V, p. 231; Davids. .C Wend. ibid, vii, p. 1)3; Ball, ibid. 

 p. 232. 



Fuligula nyroca, Unmr, S. F. vii, p. 193 ; ibid. Cat. No. 'J6U ; .S'c-((//^, 

 ■S'. F. viii, p. 363 ; lliiinr .(' MarsJi. (lanie-B. iii, p. 263; Vidal, S. F. 

 ix, p. 93 ; Hnnie, ibid. p. 259 ; Butler, ibid. v. 139 ; Beid, ibid, x, 

 ]). 81 ; Davidnon, ibid. p. 236 ; Taijlor, ibid. pp. 528, 531 ; Oatcs, 

 B. of B. B. ii, p. 287 ; id. Nests and Fijijs [ind etl.), iii, p. 292 ; 

 Barnes, B. of Bom. p. 113; Hwine, S. F. xi, p. 317; Sinclair, 

 J. B. N. H. S. xiii, p. 192. 



Nyroca ferruginea, Blanford, Avifauna B. I. iv, p. 160. 



Nyroca africana, Salvadon, Cat. B. M., xxvii, p. 315 ; Stuart Baker, 

 J. B. X. II. S. xii, p. 266 (1900) ; id. Indian Duels, p. 227 (1908) ; 

 Hartniiton, J. B. N. II. S. xxi, p. 1088 (1912); Bell, ibid, xxii, p. 100 

 (1913). 



Nyroca nyroca, Oates, iiaine-B. ii, p. 318. 



Description. Male. — Wliole head, necli, and breast ricli nifous, or bay- 

 brown, the nape somewhat darlier, a darli collar of brownish-black round 

 the neck and thence behind to the back the same colour, a small white spot 

 on the chin ; whole upper parts dark blackisli-brown or dull black, the 

 feathers of the scapulars and upper back more or less vermiculated witli 

 rufous, the vermiculations often almost entirely absent. WinRs as in N. 

 baeri, but are said, as a rule, to have the white purer ; I have, however, 

 specimens of both species quite inseparable in this respect. Lower plumage 

 the same as in N. baeri (see p. 273). 



Colours of soft parts. — Irides white ; bill dull slaty : legs dull, dark slate, 

 tinged either with grey or green, and sometimes mottled about the joints. 



" The bill is black, bluish-black and dark leaden, often browner below ; 

 the irides white or greyish-white ; the legs and toes slate-colour, leaden or 

 dusky-grey ; the tarsi often with a greenish tinge ; tiic claws and webs dusky 

 to black." {Hume). 



Measurements.— Length aijout 17 inches, wing 71, tail 3'3, tarsus 1'2, 

 bill from front r56, from extreme base 1'96, width at front '78 and at base 

 61. 



" Length 16 to 17 1 inches, expanse 21'5 lu 27'3, wing 6'8 lo 715, tail 



