Tres especies del género Tityra en Argentina

we present the first record of the masked tityra (tityra semifasciata) in argentina. we observed and photographed a male on 17 january 2008 in parque nacional iguazú, misiones. the bird was in the canopy, in a mixed-species flock that included the other two species in the genus, the black-tailed tityra (tityra cayana) and the black-crowned tityra (tityra inquisitor). we describe the main features that diagnose tityra semifasciata semifasciata from the similar tityra cayana braziliensis. the presence of tityra semifasciata in northern misiones province might have been favoured by the ongoing deforestation of the interior atlantic forest, as occurs with other bird species recently added to the avifauna of misiones.