Download a professional PDF field guide featuring all the species found in Mercer County. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 67 total documented species.
Wineberry
Hedge Garlic
Haymaids
Mayapple
Purslane
Polecatweed
Japanese Barberry
Bead Fern
Song Sparrow
Burningbush
Canada Goose
Baby Rose
Sassafras
Great Blue Heron

Common Shiner
Goosander
American Beech

Burnweed
Tuliptree
Herring Gull
Get all 67 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Mercer County County, New Jersey
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 Mercer County County.
The Mercer County ecosystem supports 67 documented wildlife species across 64 taxonomic genera. Located in Mercer County, New Jersey, this area provides critical habitat with diverse natural communities. The location hosts 14 frequently observed species and 13 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Rocky Brook nearby has 16% more documented species, Mercer County offers unique wildlife observation opportunities.