RING-NECKED DUCK 



NY ROC A COLLARIS (Donovan) 



(Plates 58, 59) 



Synonymy 



Anas collaris Donovan, British Birds, vol. 6, pi. 147 and text, 1809. 



Anas fuligula Wilson (nee Linne), Amer. Ornith., vol. 8, p. 66, pi. 67, fig. 5, 1814. 



Anas (Fuligula) rufitorques Bonaparte, Journ. Acad. Nat. Sci. Philadelphia, ser. 1, 



vol. 3, p. 381, 1824. 

 Fuligula rufitorques Bonaparte, Ann. Lyceum Nat. Hist. New York, vol. 2, p. 393, 



1826. 

 Fuligula collaris Bonaparte, Cat. Met. Uccelli Europ., p. 73, 1842. 

 Marila collaris Bonaparte, Comptes Rend. Acad. Sci. Paris, vol. 43, p. 651, 1856. 

 Fulix collaris Baird, Birds No. Amer., p. 792, 1858. 



Fuligula affinis Sclater (nee Eyton), Proc. Zool. Soc. London, p. 365, 1859. 

 Nyroca collaris A. and E. Newton, Handbook Jamaica, p. 113, 1881. 

 Ay thy a collaris Ridgway, Proc. U.S. Nat. Mus., vol. 8, p. 356, 1885. 



Vernacular Names 



English: Ring-necked Duck, Ring-necked Scaup, Ring-necked Black-head, Ring- 

 bill, Ring-billed Black-head, Ring-billed Shuffler, Marsh Blue-bill, Pond Blue- 

 bill, Creek Red-head, Bastard Broad-bill, Moon-bill, Black-jack, Bunty, 

 Golden-eyes, Mud Duck, Buck-eye, Black Duck, Tufted Duck, Blue-bullet, 

 Puddle Duck, Butter-ball. 



German: Ringel-moorente. 



French: Morillon a collier, Canard noir. 



Spanish: Pato negro, Pato morisco, Chaparro grande. 



Mexican: Talalactli. 



DESCRIPTION 



Adult Male: Head and upper neck black with purple and green reflections, and on the chin a white 

 spot. Occipital feathers rather long. Around the neck a more or less distinct chestnut collar merging 

 into the deep black of the mantle. Scapulars, back, rump and upper tail-coverts black with greenish 

 reflections. Tail very dark brown. Breast black, sharply distinguished from the pure white of the 

 upper abdomen. On each side the white of the upper abdomen is continued up under the bend of the 

 wing and sometimes by a few white feathers forms an irregular line between mantle and scapulars. 

 Sides, flanks and lower abdomen finely vermiculated with wavy black lines. Under tail-coverts black. 

 Outer wing-coverts dark brown. Secondaries gray, forming a pale gray speculum. Primaries dark 

 brown, tertials greenish black. Under wing gray except the marginal coverts which are brownish, 

 and the axillars which are white. 



