We present evidence of common vampire bats Desmodus rotundus (É. Geoffroy Saint-Hilaire, 1810) attacking two wild exotic mammals; the wild pig Sus scrofa (Linnaeus, 1758) and the chital deer Axis axis (Erxleben, 1777). Observations were made in El Palmar National Park, Entre Rios province (Argentina) using camera traps. To our knowledge, this is the f rst report documenting attacks of vampire bats to exotic wild mammals in Argentina. RESUMEN Presentamos evidencias sobre murciélagos vampiros comunes Desmodus rotundus (É. Geoffroy St.-Hilaire, 1810) atacando a dos mamíferos exóticos salvajes; el jabalí Sus scrofa (Linnaeus, 1758) y el ciervo Axis axis (Erxleben, 1777). Las observaciones se realizaron en el Parque Nacional El Palmar, Provincia de Entre Ríos (Argentina) mediante cámaras trampa. Este es el primer reporte que documenta el ataque de murciélagos vampiros a mamíferos salvajes exóticos en Argentina.
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