Bullfrogs prefer larger streams and river banks, or large semi-permanent ponds and lakes.
The Big Beaver Creek is a marginally suitable habitat, being too shallow through much of its length for this big frog's needs. Other Bullfrogs likely inhabit the southern extreme of the BCW where the Big Beaver Creek is deepest as it approaches the Little Miami River. Richness Survey indicate sites where Bullfrogs were found. As detailed above, evidence of R. catesbeiana occuring within the greater Beaver Creek Wetlands is limited to a single sighting and audio recording of an adult Bullfrog at the bank of the Big Beaver Creek. It is likely that Bullfrogs are more common in the southern extremes of the BCW, where the Big Beaver Creek is deeper and wider as it flows toward the Little Miami River.