Two home-made traps for English sparrows
By: prepared in the Denver Wildlife Research Laboratory, Branch of Wildlife Research
Contributors: Wildlife Research Laboratory (Denver, Colo.)
Series: Wildlife leaflet -- 307; Wildlife leaflet -- 307.
Publisher: U.S. Dept. of the Interior, Fish and Wildlife Service
Published: 1948
Place of publication: Washington, D.C
Language: eng
Subjects: English sparrow; Control; Bird pests; Bird trapping
Notes: Caption title.

"April 1948."