CRESTED DUCK 
ANAS CRIST AT A Gmelin 
(Plate 26) 
Synonymy 
Anas cristata Gmelin, Linne’s Systema Naturaj, ed. 13, vol. 1, pt. 2, p. 540, 1789. 
Tadorna cristata Stephens, General Zoology, vol. 12, pt. 2, p. 77, 1824. 
Anas specularioides King, Zoological Journ., vol. 4, p. 98, 1828. 
Anas pyrrJiogastra Meyen, Nova Acta Acad. Leop. -Carol., Halle, vol. 16, suppl., 
p. 119, 1833. 
Dafila pyrogaster Eyton, Monograph Anatidse, p. 113, 1838. 
Anas tophyra Forster, Descriptiones Animaliuin, p. 340, 1844. 
Dafila pyrrhogastra Reichenbach, Synopsis Avium, Natatores, pi. 88, fig. 923, 1845. 
Dafila cristata Bonaparte, Compt. Rend. Acad. Sci. Paris, vol. 43, p. 650, 1856. 
Lophonetta cristata Riley, Proc. Biol. Soc. Washington, vol. 27, p. 100, 1914. 
Vernacular Names 
English: Crested Duck, Antarctic Duck, Gray Duck. 
French: Milouin des Malouines. 
Spanish: Pato juyal, Pato juarjual, Pato crestado. 
DESCRIPTION ‘ 
Adult Male: Top of head dark gray, forehead, sides of head, and neck very light gray, dotted with 
blackish, the dots, however, being absent on chin and throat, which areas are almost pure white. 
A long occipital crest of gray feathers extends back along upper side of neck. All the lower parts pale 
fulvous to a rusty-brown color, with the breast, and sometimes the abdomen more or less spotted, 
or irregularly barred with darker tints. Mantle and scapulars brown, the feathers having grayish 
margins on the former region and dark tips on the latter region. Wing with a very beautiful coppery- 
red to metallic-green speculum, bounded posteriorly by a witle black, followed by a wide white band. 
Lesser wing-coverts uniform gray-brown. Under wing-coverts dark gray, axillars white. Primaries 
dark olive-brown. Rump and upper tail-coverts light gray, tail black, with metallic reflections. 
Under tail-coverts black. 
Iris reddish to brownish. Bill black above, flesh-color below. Legs and feet grayish (R. M. Beck, 
field notes). 
Wing 250-264 mm.; bill 39-44; tarsus 46-50. 
Weight 2g to 2| pounds (1.07 to 1.18 kilograms). 
Adult Female: Similar except for a shorter crest and smaller size. Colors of soft parts same. 
Wing 240-247 mm.; bill 39-42; tarsus 44-48. 
Weight about 0.5 pounds (0.22 kilograms) less than male. 
