Memphis area woman is in a battle to keep her goats. The chickens she owns were not an issue. This blog notes that Memphis allows laying hens. My aunt's neighbor used to have chickens, and code enforcement did not care. In our nicer area, down the street, a neighbor has horses and cows, but I think they may have been grandfathered in, as they hadn't sold their land for a long time, and no one has probably ever complained about their horses, cows,etc.
We nearly had a frost yesterday so I guess it was too early to plant after all.