Welcome to Marin County Parks

Guide to selected species of:

Marin County

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American Badger
American Badger
Taxidea taxus
Unique with short legs and black and white striped face. White stripe runs from nose to...
Big Brown Bat
Big Brown Bat
Eptesicus fuscus
As the name suggests, this is a large brown bat with naked, dark membranes. The tail...
Black Rat
Black Rat
Rattus rattus
Scaly, sparsely haired, uniformly dark tail that is longer than the head and body. This dark...
Black-tailed Jackrabbit
Black-tailed Jackrabbit
Lepus californicus
Black upper tail and ear tips. Upperparts and sides are brown to dark gray, underparts pale...
Blue Whale
Blue Whale
Balaenoptera musculus
The world's largest animal, and the largest animal ever to exist, they are mottled blue with...
Bobcat
Bobcat
Lynx rufus (Felis rufus)
North America's most abundant spotted cat, with a tail tip that is black above and white...
Botta
Botta's Pocket Gopher
Thomomys bottae
One of the world's most variable small mammals, usually has a unique purple tinge to the...
Bottle-nosed Dolphin
Bottle-nosed Dolphin
Tursiops truncatus
Large, plain gray dolphin with short, wide beak, wide head and body, and long flippers. Tall...
Brazilian Free-tailed Bat
Ron Groves
Brazilian Free-tailed Bat
Tadarida brasiliensis
The most common member of the family has deeply furrowed lips, and ears that are not...
Broad-footed Mole
Sarah Murray/CCSA
Broad-footed Mole
Scapanus latimanus
Hairiest tail of western moles. The snout is shorter and broader than other moles, and the...
Brush Mouse
Brush Mouse
Peromyscus boylii
Has unique broad, bright orange lateral line extending from the cheek to the hindquarters. The back...
Brush Rabbit
Brush Rabbit
Sylvilagus bachmani
Small rabbit with short legs and tail. Ears are slightly pointed and sparsely haired inside (not...
California Ground Squirrel
California Ground Squirrel
Spermophilus beecheyi
A large, spotted squirrel with a mantle of light gray running from the ears back onto...
California Myotis
California Myotis
Myotis californicus
Tiny bat with short ears, relatively short hind feet, and an obviously keeled calcar. Differs from...
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California Pocket Mouse
Chaetodipus californicus
Large pocket mouse with whitish spinelike stiff hairs on rump. Differs from San Diego and Spiny...