Mammals:
* Large mammals:
* Black-tailed deer: Commonly seen in the hills and along roadsides.
* Mountain lion: While rare, they do inhabit the region and are known to prey on deer.
* Bobcat: Smaller than mountain lions, they are more common and can be found in brushy areas.
* Gray fox: Frequently seen in vineyards and residential areas.
* Coyote: Adaptable and common, they are known to scavenge and prey on small animals.
* Smaller mammals:
* Ground squirrels: Ubiquitous in the valley.
* Pocket gophers: Found in the fields and gardens.
* Rabbits: Common in grasslands and agricultural areas.
* Raccoons: Often seen scavenging in urban and rural areas.
* Skunks: Found throughout the valley.
* Bats: Various species of bats inhabit the region.
Birds:
* Birds of prey:
* Red-tailed hawk: One of the most common hawks seen in the valley.
* Golden eagle: Sometimes spotted soaring overhead, especially in the mountains.
* Peregrine falcon: Fast and agile, they are occasionally seen in the valley.
* Other birds:
* California quail: Often found in open fields and brushy areas.
* Western meadowlark: Their distinctive songs are common throughout the valley.
* Hummingbirds: Several species of hummingbirds visit the valley, especially during the summer months.
* Mourning doves: Common in urban and rural areas.
* Wild turkeys: Can be seen in wooded areas and grasslands.
Reptiles and Amphibians:
* Reptiles:
* Western rattlesnake: Found in the hills and grasslands.
* Gopher snake: Non-venomous snakes that prey on gophers.
* Lizards: Various species of lizards inhabit the region.
* Amphibians:
* California newt: Found in ponds and streams.
* Bullfrogs: Common in the valley's wetlands.
Other Wildlife:
* Insects: A wide variety of insects, including bees, butterflies, and beetles.
* Fish: Trout and other fish inhabit the rivers and streams.
* Snails and slugs: Common in gardens and vineyards.
Note: This is not an exhaustive list, and the specific animals present may vary depending on location and season.