Christmas census summary, 1900-1939
By: by Leonard Wing.
Publisher: State College of Washington
Published: 1947
Place of publication: Pullman, Wash
Language: eng
Number of pages: 270
Subjects: Birds -- North America.
Notes: Typescript (mimeographed).
"The Christmas census taken by cooperators of Bird-lore (now Audubon magazine and Canadian field-naturalist for the years 1900-1939 and 1924-1939, respectively, supply the data for this summary."