PHOTOS: San Francisco pet ban

Two small hamsters make use of their exercise wheel. Officials with the city’s animal services agency say hamsters are euthanized at a greater rate than any other animal.  (Bob Chamberlin / Los Angeles Times)

Ed Woo of San Francisco holds a long-hair guinea pig he just bought. He also has a dog, parrot, frog and another guinea pig.  (Bob Chamberlin / Los Angeles Times)

If the proposal passes, San Francisco residents will have to visit another city to buy birds like this blue mountain lorikeet, or find shelters or rescue groups where they could adopt.  (Bob Chamberlin / Los Angeles Times)

San Francisco Animal Control volunteer Penny Eggen checks a rabbit cage at a city-county shelter. Sales of bunnies and chicks were axed in San Francisco more than 30 years ago, spurred by Easter excesses and pint-sized attention spans.  (Bob Chamberlin / Los Angeles Times)

Eggen holds a guinea pig as another volunteer sits with a rabbit. The animals were abandoned at the city-county animal shelter at 15th and Harrison streets.  (Bob Chamberlin / Los Angeles Times)