A few of the guys on the California Predators Club forum are seeing birds in decent numbers, but it sounds hit/miss. Some pics up in what looks like the Carizzo, show a nice covey around a spring trough.

I hit the bottom of Apache a week and half ago. Not a one. Up the road a bit, my friend's patch had a covey. I shot one bird out of it and we gave up after chasing it around the hill for a day.