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Efecto De La Presencia De Bebederos Artificiales Sobre La Diversidad Y Abundancia De Los Colibríes Y El Éxito Reproductivo De Dos Especies De Plantas En Un Parque Suburbano De La Ciudad De México
María del Arizmendi, Edgar López-Saut, Constanza Monterrubio-Solís, Lourdes Juárez, Ivonne Flores-Moreno, and Claudia Rodríguez-Flores

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A Further Specimen of the Fine-barred Piculet (picumnus Subtilis) in the Museum of Natural History, Vienna, Austria
Herbert Schifter

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Book Reviews—reseñas De Libros—resenhas De Livros
John G. Blake

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Index to Volume 11, 2000
Ornitología Neotropical

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Ectoparasitic Load of Blue-fronted Parrot (amazona Aestiva, Psittacidae) Nestlings
Igor Berkunsky, Anahi Formoso, and Rosana Arambura

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The Closest Relatives of Birds
Luis M. Chiappe

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News–noticias–notícias.
Ornitología Neotropical

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Migratory Birds in the Semi-arid Caatinga Scrublands of Northeastern Brazil: Diversity and Seasonal Patterns
Juan Ruiz-Esparza, Patrício Adriano de Rocha, Daniela Pinheiro Bitencurti Ruiz- Esparza, Adauto de Souza Ribeiro, and Stephen F. Ferrari

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Prey Selection and Foraging Patterns of the White- Rumped Sandpiper (calidris Fuscicollis) at Península Valdés, Patagonia, Argentina
María de los Ángeles Hernández and Luis Oscar Bala

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Seasonal Abundance and Behaviour of Coastal Birds on Cassino Beach, Brazil
C. M. Vooren and A. Chiaradia