Breeding biology of California and ring-billed gulls: a study of ecological adaptation to the inland habitat/ by Kees Vermeer.
Contributors: Vermeer, Kees.
Publisher: Environment Canada
Published: 1970
Place of publication: Ottawa
Language: eng
Subjects: Birds -- Geographical distribution.; Birds -- Nests.; California gull.; Ring-billed gull.
Notes: Bibliography: p. 49-50.

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