Richard Klim
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Imberti & Casañas 2010. Hooded Grebe Podiceps gallardoi: extinct by its 50th birthday? Neotropical Birding 6.
http://www.neotropicalbirdclub.org/neobird/NeoBird6-Imberti.pdf
Richard
http://www.neotropicalbirdclub.org/neobird/NeoBird6-Imberti.pdf
Richard