A List of The Extinct Fossil Birds of California
A list of the extinct fossil birds of California by Hildegarde Howard. Bull. Southern California Acad. Sci., 82(1): 1-11. 1983. Ninety-six extinct species of birds are now known from fossil deposits in California, all within the Cenozoic Era. These are listed in taxonomic order together with the geologic age, formation and locality from which they were first recorded.
"A List of The Extinct Fossil Birds of California,"
Bulletin of the Southern California Academy of Sciences:
Available at: https://scholar.oxy.edu/scas/vol82/iss1/2