Desert Cottontail,
Sylvilagus audubonii

is the little bunny rabbit most of California from Redding to Baja, along the coast from Napa south and over through the desert into Central Nevada.
Our experience with desert Cottontail suggests they'll eat any vegetative matter if there's a drought. On normal years they prefer watered vegetation, young growth and lush grasses. They will eat plants on drip irrigation and leave the ones not on drip alone. They love veggies.