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 Salvadori, T. 



1895. Catalogue of the birds in the British Museum, 27, i-xv, 1-636, 

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 Sheldon, H. H. 



1907. A collecting trip by wagon to Eagle Lake, Sierra Nevada Moun- 

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 Swarth, H. S. 



1911. Birds and mammals of the 1909 Alexander Alaska expedition. Univ. 

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