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Cambridge: International Council for Bird Preservation, 1987. Octavo, softcover. International Council for Bird Preservation Technical Publication No. 6. Based on the proceedings of a Symposium and Workshop held at the 19th World Conference of the International Council for Bird Preservation, June 1986, Queens University, Kingston, Ontario, Canada.
Chicago: University of Chicago, 2010. Octavo, colour illustrations, laminated boards. Presents a classification system and threat analysis for bird habitats in the United States, and the most thorough and scientifically credible assessment of threats to birds published to date, as well as a new list of birds of conservation concern.....