Increased urbanization and decreased government funding, plus increased numbers of certain wildlife species, have combined to provide a greater need for wildlife management of nuisance animals in the urban environment.  The author cites data from a 1989 National Pest Control Association survey of private wildlife pest control services, which notes that the most common species complaints deal with mice and rats, squirrels, birds, and bats, followed by raccoons, skunks, moles, and others.  The biology of, damage caused by, and effective damage control methods for tree squirrels, raccoons, skunks, and opossums are discussed.