Author: Bryant, H.C., 1914.:
Title: A survey of the breedings grounds of ducks in California in 1914.
Description: The Condor, 16(5): pp. 217-239, 9 photos in text. Large 8vo. Offprint, orig. wrappers. - With name and signature of the Durch naturalist W.C. van Heurn (1887-1972) with notice "1918, Nov., San Francisco" and some pencilled notes in his hand.

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