FERRUGINOUS DUCK 
Nyroca nyroca (Giildenstadt) 
Anas nyroca, Guld., Nov. Comm. Petrop., xiv. p. 403 (1769). 
Sarcelle D'Egypte, Buff, PI. Enl., x. p], 1000 (1784). 
African Teal, Lath., Gen. Syn., iii. pt. 2, p. 555 (1785). 
Anas Africana^ Gmel., Syst. Nat., i. p. 522 (1788). 
Ferruginous Buck, La.th.j Gen. Syn., iii. pt. 2, p. 526 (1785). 
Anus ferruginea, Gm., Syst. Nat., i. p. 528 (1788). 
Anus leucophthalmus^ Bechst., Orn. Taschemb., i. p. 450 (1802). 
Anas glaucion, Pall, Zoogr. Rosso-Asiat,, ii. p. 268 (181 1). 
Aythya nyroca, Boie, Isis., 1822, p. 564. 
Fuligula nyroca, Staph., Gen. Zool., xii. p. 201, pi. 55 (1824). Yarrell, 4th ed., &c. 
Nyroca leucophthalmos, Fleming, Brit. An., p. 121 (1828). 
A thy a leucophthalmos, Brehm, Vog. Deutschl., p. 917 (i 831). 
Anas nyroca, Naumann, Vog. Deutschl., 2nd ed., xii. p. 41 (1844). Schlegel, &c. 
Nyroca obsoleta, Brehm, Naumannia, 1855, p. 298. 
Nyroca ferruginea. Dresser, Birds of Eur,, vol. vi., p. 581 (1879). 
Fulix nyroca, Giglioli, Arif. Italian, p. 316 (1886). 
Nyroca nyroca leucophthalmos, Privaldszky, Av. Hung., p. 165 (1896). 
Nyroca africana, Cat. Birds Brit. Mus., xxviii. p. 345 (1895). ' 
Nyroca nyroca, Giild., Reechenow, Vog. Afrikas. i., p. 109 (1900). 
Local Names. — White-eyed Pochard, White-eyed Poker, White-eye, White-eyed Duck, Ferruginous Duck 
{English); Schetrusi {Arabic)', Plavka {Bulgarian)', Patka Njorka, Patka bjelokrila {Croatian); 
Polak maly {Chechish) ', Crnin {Dalmatian); Hvidoiet And {Danish); Baltatschu pihle {Esthnian); 
Fuligule nyroce, sarcelle rousse, bouice raughe, Canard hongrois {French) ; Zuta norva {Herse- 
govinian) ; Witoog {Dutch) ; Akajahiro {Japanese) ; Moretta tabaccata, Tuffetto tuffatore, Colletto, &c. 
{Italian) ; Braimla {Maltese) ; Zirigueil {Moorish) ; Cruka {Montenegrin) ; Kaczka ponur {Polish) ; 
Lurro {Portuguese) ; Ootka nyrok {Russian) ; Negrete, Anach chaculatur. Rochet, Coquinero, Zarro 
{Spanish) ; Gzigany recze {Hungarian). 
Egg. — Generally pale brown, sometimes with a faint yellow or greenish tint. In 
shape a long oval, though Hume states that they are " occasionally considerably elongated, 
and slightly compressed towards one end." Length from 1.9 to 2.2 inches; breadth 1.4 to 
1.54 inch. Mr. Stuart Baker (Indian Ducks) states that his series of eggs average 
2.12x1.45, showing them to be rather narrower and longer than the Hume series. The 
number laid is between 6 and 10, but occasionally 12 to 14, and even 20 (Von Madaraz), 
the last record being probably the results of two females laying in the same nest. 
Nestling in Down. — Upper parts a rich dark brown, being slightly lighter in the centre 
of the back. This colour is extended to the lower breast and belly and vent ; faint yellowish 
edging to the wings. Cheeks, chin, neck, and breast rich sandy yellow. A very small line 
of brown extends from the bill to eye, and just beyond ; a small brown spot is also found 
near the ear ; bill slatey-blue black with tip lower mandible and lower edge of upper 
mandible bright bone yellow. Feet slatey-blue black with yellowish spots along the toes 
(F. E. Blaauw) (nestling taken Tyck, Hungary, June 17, 1903); see figure in plate of 
young in down. 
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