Download a professional PDF field guide featuring all the species found in Trenton. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 80 total documented species.
Goosander
Herring Gull
Goldeneye

Black-Backed Gull
Great Black-Backed Gull
Ring-Billed Gull
Song Sparrow

Iceland Gull
Bald Eagle
Great Blue Heron
Bufflehead
Mallard
Wood Duck
Night Heron
Chicken Hawk
Canada Goose
Fish Crow
Haymaids
Ring-Necked Duck

Common Map Turtle
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 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 Trenton ecosystem supports 80 documented wildlife species across 71 taxonomic genera. Located in Mercer County, New Jersey, 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.