Hmm, I thought we had the Pacific Tree Frog aka Pacific Chorus Frog here, but now I’m learning that the species was divided into three in 2006, and in Southern California ours is called the Baja California Tree or Chorus Frog (Pseudacris hypochondriaca).

Due to its proximity to Hollywood, this species of chorus frog has often had its vocalizations featured as stock sounds in film and television. Consequently, its distinctive “ribbit, ribbit” call has become the quintessential frog sound in the English-speaking world, even though only this species and a few closely related ones actually produce that sound.