The breeding season lasts from May to early June. Male frogs begin to call after dark. The leopard frogs sound is described as a low guttural sound that last about 3 seconds followed by several clucking or grunting noises. When a male finds an ovulating female to mate with he will mount her, and grab onto her with a specialized pad on the inner side of each thumb that is made for grasping the female its hard to dislodge the male. Completion of the mating and the deposition and fertilization of the eggs occurs. Shortly after mating females deposit 3000 eggs, which are attached underwater to plants, logs, or rocks. Gestation is 10 to 20 days for the eggs to hatch, but tadpoles do not become adults until July or early August. Generally these young adults will be found in shallow waters or in some kind of moist environment (Cueller 1968).