Today around the ponds at the Clemson Sandhill Research and Education Center (where the Children's Garden is located) dozens of Southern Toads are calling. The call is a high-pitched trill that lasts for several seconds. The males have a vocal sac that inflates as they call making the noise louder. The males are calling for females. Once a female finds him, they mate as the female lays long strings of jelly-like eggs. You can probably find some eggs if you look closely among the lily pads on the edge of the water.