With development increasing at such a rapid pace, and people's concern about their food, we have seen a big surge in membership from people wanting to garden. Community gardens are increasing seen as community development tools as well. We have contracted with the police department in Mass. to help develop these gardens as a way to reduce crime. Every year my lawn is ravaged by skunks and moles. I'm guessing they are after bugs.
Skunks are usually after grubs.
Moles like lot's of things, especially earthworms, but they will eat grubs as well. Sounds like you may have a grub problem. Check under the turf by digging a square foot square. Pull the turf back and check for the grubs. They usually curl into a c-shape.