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♦ ¹Feeding ecology of the Green-cheeked parakeet (Pyrrhura molinae) in dry forests in western Brazil, Ragusa-Netto, J., Braz. J. Biol., 67(2): 243-249, 2007
♦ ²Avian fruit preferences across a Puerto Rican forested landscape: pattern consistency and implications for seed removal, Tomás A. Carlo, Jaime A. Collazo and Martha J. Groom, Oecologia (2003) 134:119–131