By De La Hera Iván   Pérez-Tris Javier   Tellería José Luis   in Acta Ornithologica

ISSN:0001-6454|44|1|95-99

Museum and Institute of Zoology, Polish Academy of Sciences‎(2009)‎

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By Pérez-Tris Javier   Ramírez Álvaro   Tellería José Luis   in Bird Study

ISSN:0006-3657|50|2|146-152

Taylor & Francis Ltd‎(2003)‎

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