Others have refound the Gray Catbird around 12:30-1pm today. It's been on the north side of Babel Slough Road, very near the intersection with River Road. Google maps location: https://goo.gl/maps/yciPnhySUym
There's a lot of fruiting pokeberry and blue elderberry to keep this bird happy, so hopefully it will stay around.
Other good birds in the area included a Dusky Flycatcher, a Green-tailed Towhee, and a Yellow-breasted Chat. My full list for the morning (with a catbird audio clip) is here: https://ebird.org/view/checklist/S48395895
Happy birding, Rob Furrow
-- Robert Furrow Davis, CA 95618 <robertfurrow...> <rfurrow...>