Download a professional PDF field guide featuring all the species found in Humboldt County. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 78 total documented species.
Ochre Stars

Ritter'S Soft Coral


Shallon

Pacific Banana Slug

Redwood
Rock Cod
Western Sword-Fern

Hump
California Mussel
Wood-Lily

California Huckleberry
Song Sparrow

Parrot Waxcap


Ensatina
Western Gull
Get all 78 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Humboldt County County, California
These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Humboldt County County.
The Humboldt County ecosystem supports 78 documented wildlife species across 72 taxonomic genera. Located in Humboldt County, California, this area provides critical habitat with diverse natural communities. The location hosts 16 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Arcata, Humboldt County hosts 13% more species diversity.