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By "Sturgis, Bertha Bement."
Field book of birds of the Panama Canal Zone; a description on the habits, call notes and songs of the birds of the Panama Canal Zone, for the purpose of identifying them. Many of these birds are also common in Central and South America. By Bertha Bement Sturgis; with over 100 illustrations, colour plates, pen-and-ink sketches, and a map of the Panama Canal Zone.
By: Sturgis, Bertha Bement.
Publication info: London,G. P. Putnam's sons,1928.
Contributed by: Prelinger Library (archive.org)