Catfish are an important part of the fishing experience for Kansas anglers. Channel and Flathead catfish have been commonly angled in Kansas waters throughout recorded history, but the statewide popularity of Blue Catfish has been a recent development. These three catfishes now share a much larger distribution than they did 20 years ago. Furthermore, the Blue Catfish is stocked for its trophy potential and, as such, is regulated more conservatively. These regulations vary from minimum-length limits to protected slot lengths and lower creel limits. Channel and Flathead catfish are regulated more liberally in Kansas. The recent Blue Catfish range expansion and varying harvest regulations among catfish species have increased concerns of fisheries managers regarding the ability of anglers to distinguish among the species. We presented anglers at Wilson Reservoir with live Blue and Channel catfish and quantified misidentification rates. We compared misidentification rates from participants with varying angling experience and catch-related attitudes. Anglers misidentified catfish 27.4% of the time despite their mean angling experience of 26.7 years, and rates of misidentification varied based on catch-related attitudes. Although not always intentional, there is significant potential for illegal harvest of catfish at Wilson Reservoir and, likely, statewide.