The cowbirds: a study in the biology of social parasitism.
Springfield: Charles C. Thomas, 1929. Octavo, photographs, signature, bookplate, publisher's cloth. More
Springfield: Charles C. Thomas, 1929. Octavo, photographs, signature, bookplate, publisher's cloth. More
Washington: Smithsonian Institution, Bulletin 233, 1963. Octavo, wrappers, a very good copy. United States National Museum Bulletin 233. More