My sister used to live in San Francisco. Every Chinese New Year there would be hundreds of King Pigeons released as part of the celebration. Then they would end up lost on the streets or getting hit by cars, since they weren't really wild and didn't know how to cope. My sister was always scooping them up and taking them to Animal Control. They would be inundated with the big white birds. Since Chinese New Years is in February, you may or may not find some Kings at the San Francisco SPCA or Animal Control, but it couldn't hurt to try. Not too long a drive from Elk Grove.