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ANAS CRIST AT A 
from a great number of localities, of which those for Gregory Bay, Punta Arenas and Rio Pescado 
Straits of (Salvadori, 1900a) as well as Port Rosario, Cockle Cove, Tom Bay (Sharpe, 1881) and 
Magellan Elizabeth Island (Ridgway, 1890) are sufficiently representative. Some of these rec- 
ords are for the warm and some for the cold season, indicating that even so far south the species is 
Tierra del essentially resident. The same is true of Tierra del Fuego (Crawshay, 1907) where it 
Fuego is also quite common (Blaauw, 1916a; Dabbene, 1910; etc.). Mr. Rollo M. Beck 
brought together a very large series of these birds from southern Chile and Tierra del Fuego in 1914 
for the Brewster-Sanford collection, now in the American Museum of Natural History in New York. 
The Crested Duck is common also on both of the large islands and presumably on the smaller 
Falkland islands of the Falkland group (Abbott, 1861). Mr. W. S. Brooks, who visited these 
Islands islands recently, found it still abundant and breeding there, much as it does in Tierra 
del Fuego. 
GENERAL HABITS 
Haunts. This is the characteristic duck of the coasts of antarctic South America. 
Although in most regions it retires into the interior to breed, it is found during the 
greater part of the year on the salt water and even on kelp beds a considerable dis- 
tance from shore. At the northern extremity of its range, on the high mountain lakes 
of Bolivia and Peru, it is resident the year round and has become differentiated as a 
local race {Anas cristata aliicola). In the rigorous climate of Tierra del Fuego it is 
the only duck, excepting the Steamer Duck {Tachyeres cinereus) which braves the 
antarctic winter. So far as known there is no migration even from this extreme 
southern limit of its range. What migration there is seems to be vertical, and P. 
Gosse (1899) speaks of seeing some on a small lake in the Horcones Valley, Mt. Acon- 
cagua, which they seemed to use as a halting station, since they never stopped for 
more than a day or two. It is doubtful whether this duck is very closely related to 
the more typical surface-feeding ducks of the northern hemisphere. Riley (1914) 
has even proposed a separate genus for it. 
Wariness. The Crested Duck is considered more wary than the Chiloe Widgeon 
(Anas sihilatrix) or the Chilian Pintail (Anas spinicauda), according to Crawshay 
(1907), but Blaauw (1916a) found them quite tame in a sanctuary at Porvenor 
Bay, Chile. Mr. J. L. Peters found it by no means wild in western Patagonia, and 
he succeeded in enticing a pair to within gunshot by waving his hat at them. 
Daily Movements. This duck is probably crepuscular in its habits. In southern 
Peru, about Lake Junin, it is seen on land more frequently than some of the other 
ducks; like the Brown Pintail it leaves the water in the evening and spends the night 
on the prairies. In the daytime it is found on the lake shore, just outside the belt 
of reeds (Taczanowski, 1886). 
Gait, Swimming, Diving, Flight. After reading the voluminous field notes of 
