We started our "Wildlife" category awhile ago with this entry. Dealing with raccoons is a particular challenge for B'gamers and moles/gophers have been popping up much more frequently. The Daily Journal has a piece that offers some advice from UC Davis
The UC Davis Agriculture and Natural Resources (ANR) Division, home to the statewide Master Gardener program, offers the public detailed information on the best ways to manage various vertebrate pests through its “Pest Notes,” which are available online. (See the entire list of available Pest Notes at https://ucanr.org/freepubs/freepubsub.cfm?cat=6).
The raccoon tips are interesting, especially the chimney den part, but probably won't make a huge difference overall. They live in the sewers as well in B'game and are fearless so be careful.