A comparative study of bird populations in Illinois, 1906-1909 and 1956-1958
By: Richard R. Graber, Jean W. Graber.
Contributors: Graber, Jean Weber, 1924-; Illinois. Natural History Survey Division.; Illinois. Section of Wildlife Research.
Series: Bulletin / Illinois Natural History Survey -- v. 28, art. 3; Bulletin (Illinois. Natural History Survey Division) -- v. 28, art. 3
Publisher: State of Illinois, Dept. of Registration and Education, Natural History Survey Division
Published: 1963
Place of publication: Urbana, Ill
Language: eng
Number of pages: 528
Subjects: Bird populations -- Illinois
Other titles: Bird populations in Illinois
Notes: Running title: Bird populations in Illinois.

"A contribution from the Section of Wildlife Research of the Illinois Natural History Survey."

Includes bibliographical references and index.