California Fish Game introduced Wild Turkeys to California, from the eastern US, in the 1960's. They are now pretty common on the Peninsula; I have seen them at Portola Valley Ranch Jasper Ridge, but not at Hidden Villa as far as I recall. I saw them in the Santa Rosa area for many years before they came to the Peninsula, perhaps 10 or 20 years ago. Don Roberson contends that these Wild Turkeys may have existed in the far-northern California foothills in the late Pleistocene, say 10,000 years ago: http://creagrus.home.montereybay.com/turkey-in-CA.html, and should thus be counted by birders as a "re-introduced" species. By the time of Columbus their range had contracted to Mexico/Arizona/South Dakota/Illinois/Massachusetts/Florida/Texas/Mexico. Another species was in the Yucatan Peninsula.