Found in the water at the lake dam. Hundreds of tadpoles in the lake. Assumed they are tadpoles of the California Treefrog
The California tree frog or California chorus frog (Pseudacris cadaverina) is a "true" tree frog (family Hylidae) from southern California (USA) and Baja California (Mexico). Until recently, the California tree frog was classified in the genus Hyla.