The Baja California chorus frog (Pseudacris hypochondriaca) is a species of treefrog of Western North America. The species was formerly considered the part of the Pacific chorus frog (Pesudacris regilla), but split and raised to species status in 2006. The species ranges from the West Coast of the United States from Baja California through southern California. Individuals live from sea level to more than 10,000 feet in many types of habitats, reproducing in aquatic settings. They occur in shades of greens or browns and can change colors over periods of hours and weeks.