Lesser Scaup 



National Park Service 



BARROW'S GOLDEN EYE (Bucephala islandica) 



This handsome species is the most wide-spread duck in Yellowstone and 

 Grand Teton National Parks. It can be found not only on the major rivers 

 and streams of both parks, but also breeds on remote streams and ponds 

 at virtually all elevations. The male goldeneye is beautifully marked with 

 golden eyes, white facial crescents, purplish head, and boldly marked 

 black and white body. The female is gray, with a white collar and a dark- 

 brown head. Coldeneyes lay their eggs in tree holes near water, and for 

 this reason predation on young goldeneyes by weasels, martens, and even 

 occasionally otters is not uncommon. Many Barrow's goldeneyes remain in 

 Yellowstone and Grand Teton throughout the winter, at which time they 

 are joined by the common goldeneye, which also winters in the area. 



Harlequin Duck 



Kenneth W. Fink 



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