Cal. Fish & Game Code § 2000.5

(a) Notwithstanding Section 219, 2000, or any other provision of law, and notwithstanding any requirement for a permit or license or other entitlement to take a species, the accidental taking of a bird, mammal, reptile, or amphibian by collision with a motor vehicle while the vehicle is being operated on a road or highway is not a violation of this code or a regulation adopted pursuant to this code. For purposes of this section, “highway” means highway as defined by Section 360 of the Vehicle Code and “road” means road as defined by Section 527 of the Vehicle Code. Nothing in this section authorizes a person to possess any bird, mammal, reptile, or amphibian accidentally taken by collision with a motor vehicle as provided in this subdivision. However, accidental takes on the road or highway may be removed by the state or local agency having jurisdiction over the road or highway.