Media type: E-Article Title: Note on the Relative Abundance of Passerine and Non-Passerine Birds in Africa South of the Equator Contributor: Winterbottom, J. M. imprint: University of Chicago Press, 1964 Published in: The American Naturalist Language: English DOI: 10.1086/282341 ISSN: 0003-0147; 1537-5323 Keywords: Ecology, Evolution, Behavior and Systematics Origination: Footnote: Access State: Open Access