Even "backyard chickens?"
The place must have Mexicanized much more rapidly and totally than even we thought it was...
Southern California is not border to seaside cement. I grew up in the Inland Empire. Plenty of open spaces, room to roam, orange groves as far as the eye can see. Chickens? You betcha. My husband's family had plenty of the little clucks.
Not only that, there is a flock of "feral" chickens living under a freeway underpass, evidently there for many years.
I thought this was an urban myth but saw it confirmed, um, somewhere.
--Boris