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Ross, Bernard, On the Birds of the Mackenzie River District, Cana- 

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Seton, E. T., «The Birds of Manitoba, i8gi»; «Bird Records from 

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Stonc, Witjner, «Birds of North Groenland». 



The A. O. U. Check-Lisi of North American Birds and Suppléments. 



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Winge, Herlof, «Conspectus of the Birds of Greenland, 1898». 



Wintle, Ernest D., «The Birdsof Montréal, 1896». 



