This is where seeing a vet can be useful. The vet can take a look at the poop under a scope and see if there is a bacterial infection and sometimes they can see cocidiosis, too. The test they do with the poop will allow them to prescribe an antibiotic most appropriate for a gram positive or gram...
How far is it to Orange?
The Bird Clinic
200 South Tustin Street, Suite E; Orange, CA 92866; Phone: (714) 633-2910
http://www.thebirdclinic.com/
and these:
Veterinarians that will treat birds:
Tia Greenberg (General) Westminster
(714) 899-1100
Attila Molnar, Boarded (Med/Surgery) Calabasas...