Living with Wild Neighbors
The Humane Society of the United States
provides two great resources on their website with regard to human / wild animal interactions.
This page is designed to assist people who encounter baby animals that appear to be abandoned and want to help them.
And, with their Wild Neighbors tool, the HSUS provides advice to help people deal with conflicts with wild animals (everything from mice and birds to bears) in or around their homes in a humane yet effective manner.
You can find additional information on our own page about helping injured or orphaned wildlife.