try to get him used to eating grass hay. You can buy a bale at a feed store, and it will last you thru the winter.. store in a dry place.. like the garage.
OF course if you have a hatchling, they dont eat hay, and greens from the store will work.
What will you do when it gets bigger? Housing in the winter?
Im in Calif to,, and I DO know what snow is.. 30 minutes up the hill is some of the best skiing..
but We rarely get snow right here.. it does freeze tho...