I think Petaluma Poultry has several brands including Rock Island and Judy's. I just went to petalumapoultry.com website and it is down due to maintenance. However, in my search I found this resource link for local (No. Cal) food. Thought ya'll might find interesting
http://relocalizesacramento.wikispaces.com/Local+Food
http://relocalizesacramento.wikispaces.com/Local+Food