Mammals are a class of vertebrate animals (including humans) in which females possess mammary glands, while both males and females possess sweat glands, hair, three middle ear bones used in hearing, and a neocortex region in the brain.

Some of the mammals now common in our area were introduced from elsewhere, such as the black rat, brown rat, Eastern gray squirrel, feral cat, house mouse, Virginia opossum, and wild boar. However, the mammal species listed below are native to the Yuba-Sutter area, having lived here long before the arrival of Europeans.


Vesper Bat Family

Other Bat Families


Mouse and Small Rodent Family

Squirrel Family

Golden-mantled ground squirrels (Spermophilus lateralis) are found in Yuba County above approximately 2,000 feet in elevation—in other words, from approximately Brownsville upward. Photo by queerbychoice.

Other Rodent Families

Botta's pocket gophers (Thomomys bottae) are found in all parts of the Yuba and Sutter Counties. Photo by queerbychoice.

Other Mammals

Rabbit Family

Desert cottontails (Sylvilagus audubonii) are common at Gray Lodge State Wildlife Area, where this photograph of them was taken. They are found in all parts of Sutter County and below approximately 2,500 feet in Yuba County—in other words, almost everywhere below Challenge. Photo by queerbychoice.

Weasel Family

Other Families

Mule deer (Odocoileus hemionus) are found in most parts of Yuba and Sutter Counties. These mule deer are accompanied by a flock of wild turkeys in the American River Parkway. Photo by queerbychoice.


Mammal California Department of Fish and Game: California Wildlife Habitat Relationships System: Life History Accounts and Range Maps