California chorus frog
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.
It is a cryptically colored species of tree frog, often resembling granitic stones. It is grey or light brown on its dorsum with darker blotches, and has a whitish venter. It is yellow on the undersides of its legs, groin, and lower abdomen; males of the species have a dusky-yellow throat. The California tree frog has conspicuous toe webbing and pads, and its dorsal skin is roughened and warty. It is 2.9–5 cm (1.1–2.0 in) long.