The call of Blanchard’s cricket frogs, the state’s smallest and most abundant frogs, can be heard across much of Oklahoma during the summer. If the clacking marble sound doesn’t stick in your ears, you can always look for an upside-down triangle on the top of the head to help identify them!(🎥 Curt Allen🐸) #OutdoorOklahoma #herping | Oklahoma Department of Wildlife Conservation (ODWC)