Oedee ANSEEES.] 
[Faju. ANATIJD^. 
ANAS STIPEECILIOSA. 
(GREY DUCK.) 
Supercilious Duck, Lath. Gen. Syn. iii. pt. 2, p. 497 (178-5). 
Anas superciliosa, Gm. Syst. Nat. i. p. 537 (1788, ex Lath.). 
Ayias leucophrys, Forster, Descr. Anim. p. 93 (1844). 
Anas mulleri, Bonap. C. B. xliii. p. 649 (1856). 
Native names. — Parera and Maunu (Taupo). 
Ad. suprfi, brunneus, pliimis omnibus fulvescente'margiuatis, pilei et colli postici plumis quasi striatis : linea super- 
ciliari distincta fulvescenti-alba, altera inferiore brunne^l a summa maxilla per oculum post regionem paroti- 
cam duct& : facie reliqua et guttiire toto fulvescenti-albis, lineS, faciali indistinctiore a basi maxdlm versus 
regionem paroticam, bac et colli lateribus brunneo striatis : tectricibus alarum dorso coucoloribus et eodem 
modo limbatis, majoribus velutino-nigro terminals : remigibus brunneis, secundariis extus Isete purpura- 
scenti-viridibus, versus apicem velutino-nigris, auguste albo terminatis : cauda brunaeil, rcctricibus anguste 
fulvo marginatis: corpore reliquo subtus pallidius brunneo, late fulvescente raargioatis, quasi marmoratis; 
subalaribus albis ; rostro plumbeo, mandibuht brmmescente : pedibus flavicanti-brunneis : iride rufescenti- 
brunneS.. 
Adult. Top of the head and a broad streak from the base of the upper maudible through the eyes brownish 
black, the former slightly marked with grey ; a narrow streak from the forehead over the eyes, the cheeks 
and the whole of the throat yellowish white, sometimes tinged with rufous ; from the gape, or angles of the 
mouth, and crossing the cheeks a mottled streak of very dark brown ; ear-coverts and sides of the neck 
greyish brown, mottled or striated with yellowish white ; general upper surface blackish brown, each feather 
margined more or less distinctly with fulvous white, and those composing the mantle having a strong 
coppery hue; fore neck, breast, and underparts greyish brown, varied with fulvous white ; inner lining of 
wings and axillary plumes pure white ; sides of the body and flanks blackish brown, each feather margined 
with dull fulvous white ; primary quills dark velvety brown on their upper surface, greyish underneath; 
speculum rich glossy green, hounded on both sides with velvety black ; the secondaries with a narrow 
terminal edge of white, and of those overlapping the speculum the whole of the inner webs deep velvety 
black ; the superior wing-coverts dark brown, with a broad edging of velvety black, below which there is a 
line of yelloAvish white. Irides reddish brown; hill bluish lead-colour, the nail black, and the lower 
mandible tinged with brown; legs yellowish brown, the webs darker. Length 20 inches; wing, from 
flexure, 16; tail 2'5 ; hill, along the ridge 2, along the edge of lower mandible 2-25 ; tarsus 1-5 ; middle toe 
and claw 2' 25. 
Young. General plumage paler than in the adult ; the facial streaks, and the throat, washed with fulvous brown ; 
the underparts tinged with rufous brown. 
Sestlmg. Upper parts dark olive-brown, with produced hair-like filaments of paler brown ; sides of the head 
and underparts of the body pale yellowish brown, lightest on the abdomen; from the base of the hill, on 
each side, a dark band passes beyond the eye, and another in a curve below it; there are markings of fulvous 
white on the edges of the rvings ; and on each side of the back there are two irregular spots of the same, 
about an inch apart. Irides black ; hill and legs plumbeous, the nail of the former brown. 
Varieties. Slight differences are observable in the plumage of fully adult birds ; and a specimen which I obtained 
at Manawatu in the winter of 1864 was very curiously marked on the breast, each feather having a crescentic 
2 k2 
