Leave No Trace!
"The Seven Principles of Leave No Trace provide an easily understood framework of minimum impact practices for anyone visiting the outdoors. Although Leave No Trace has its roots in backcountry settings, the Principles have been adapted so that they can be applied anywhere — from remote wilderness areas, to local parks and even in your own backyard. They also apply to almost every recreational activity. Each Principle covers a specific topic and provides detailed information for minimizing impacts."
911 for Wildlife
Animal Help Now is an excellent resource for finding help in your area for:
Wildlife Emergency...assist injured, orphaned, or distressed wildlife.
Wildlife Conflict...resolve "nuisance" wildlife problem.