Today I saw a very wet looking, adult black pigeon sitting on the sidewalk in the underhang of the Bloomingdale's department store on Mission Street in San Francisco. I called animal care and control, but the dispatcher wasn't sure how long it would be before someone could come out. After a couple of minutes, someone walked by the pigeon so he started to walk towards the curb. He was pecking for food and walking normally with two healthy feet, and flapped both wings at one point. I came back in about 15 minutes and he had moved down a block but was still on the sidewalk against another building. I left him some wheat thin crackers which he was eating when I left again. About ten minutes later I drove by, but didn't see him anymore. It has been raining, but the other birds looked dry. I felt bad leaving him, but was unsure what to do. I'm guessing he is old and sick, and normally pigeon feathers repel water?