Download a professional PDF field guide featuring all the species found in Eureka. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 80 total documented species.
Great Blue Heron

Pacific Ninebark
California-Buckwheat

Western Grebe
Boar Thistle
Western Gull
Glaucous-Winged Gull
Spotted African Cornlily
Marbled Godwit
White-Crowned Sparrow

Fuzzy-Horned Bumble Bee
Fennel

Coast-Buckwheat

California Huckleberry
Threecorner Leek

Latin American Fleabane
Curlew

Wandflower
Sow Thistle
Get all 80 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 Eureka ecosystem supports 80 documented wildlife species across 74 taxonomic genera. Located in Humboldt County, California, this area provides critical habitat with diverse natural communities. The location hosts 17 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Humboldt County, Eureka hosts 3% more species diversity.