A cage trap useful in the control of white-necked ravens
By: by Shaler E. Aldous, Junior Biologist, Section of Food Habits, Division of Wildlife Research
Contributors: United States. Bureau of Biological Survey; U.S. Fish and Wildlife Service
Series: Wildlife research and management leaflet -- BS-27; Wildlife leaflet -- 27.
Publisher: U.S. Dept. of Agriculture, Bureau of Biological Survey
Published: 1936
Place of publication: Washington, D.C
Language: eng
Subjects: Ravens; Animal traps
Notes: Caption title.

"January 1936"