BARROW'S GOLDEN-EYE. 



Glaucionetta islandica (Gmel.). 



Adult male extremely similar to the golden-eye, but 

 larger and with the head and upper neck bluish-black, 

 with purplish reflections instead of greenish, with the 

 spot at the base of the bill, and in front of the eye, tri- 

 angular or crescent-shaped, and with very much less 

 white on the wing, this usually being confined to two 

 long bars with a short, black bar between them. 



The female is much as in the ordinary whistler. The 

 collar about her neck is narrower than in the whistler ; 

 the white on the wing is less and is crossed by a black 

 bar. The grayish on the breast, sides and flank is 

 wider in this species than in the whistler, 



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