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By: Masello, Juan F. - Lubjuhn, Thomas - Quillfeldt, PetraType: ArticleIn: El horneroVolume:Series:Issue:Date: 2009-08-01Page Range:Publication Info:Subjects: Burrowing Parrot Patagonia Psittacofulvin-based coloration Psittacofulvins Sex differences Sexual dichromatism Structural coloration