I'm late posting this but wanted to get it out anyway. You would think in an urban community garden setting that there would not be much wildlife. I believe that is true for the most part. However, last month, I got a late night visitor. I don't know precisely what this visitor was but the visitor did leave its scat. My googling indicates this is likely to be opossum because the scat was left in leafy quiet area of my garden, under the largest tomato bushes. It is too large for rabbit, rat and mice. I didn't see any tracks, however.
More info on opossums