Sorry I don't (nor will I ever.....earthquakes....phuc that!) live in california so I have no idea where you would get them there. I came across them several years back. I believe you can find people who sell them on the classifieds here on kingsnake.I would try asking around the ball python forum as well as the ball python people seem to be the ones really into them being a native rodent to africa. Quite honestly they breed better than normal mice in the heat of the summer and everything I feed them to seems to love them. They work better for my snakes size wise but the monitors get some as well.