Wild herd of Plains Zebra, remnants of captive ones held at Hearst Castle. They are breeding and self sufficient, so should be considered wild for iNat.

Some fun links for reading about them:
https://www.sanluisobispo.com/news/local/news-columns-blogs/slo-weird/article234196727.html

https://hearstcastle.org/history-behind-hearst-castle/the-castle/the-zoo/