From the Cornell Lab of Ornithology, a map of the migration of 118 species of birds in the Western hemisphere:
[On this map none of these species have reached Southern California yet; actually, a few have reached Ventura County, I think. Saw some chickadee like birds on a walk. Though I read that this has been a difficult year for migratory birds in California, because in the drought farmers have cut back from soaking their fields.]
Kit Stolz 