Breeding biology of California and ring-billed gulls
Subtitle: a study of ecological adaptation to the inland habitat.
Series: Canadian Wildlife Service. Report series, no. 12; Report series (Canadian Wildlife Service) ;; no. 12.
Publisher: Queen's Printer for Canada
Published: 1970
Place of publication: Ottawa
Language: eng
Number of pages: 52
Subjects: California gull; Ring-billed gull; Birds -- Geographical distribution; Birds -- Nests
Notes: Bibliography: p. 49-50.