Considering the breadth of research evaluating amphibian population declines and the lack of natural history information on this invasive frog species, we identified prey items in the diet of Rana berlandieri in south and west Texas. During 2000, adult frogs were collected in the spring and fall from each of five sites in Texas: (1) Santa Ana; (2) Lower Rio Grande Valley National Wildlife Refuge complex; (3) near Falfurrias; 4) a privately owned ranch in south Texas; and (5) Big Bend National Park. In total, the stomach contents of 85 frogs were analyzed. Prey items identified indicate that individuals of this species, like other Ranids, are generalist, opportunistic predators whose diet is most strongly influenced by prey availability.