A spectacular waterfowl migration through central North America
Series: Biological notes / Illinois Natural History Survey; no. 36; Biological notes (Illinois. Natural History Survey Division) ;; no. 36.
Publisher: [s.n.]
Published: 1957
Place of publication: Urbana
Language: eng
Number of pages: 24
Subjects: Water birds; Birds -- Migration; Birds -- North America
Notes: Bibliography: p. 24.