Download a professional PDF field guide featuring all the species found in Penobscot County. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 74 total documented species.

Spring Peeper
Wood Frog

Buckthorn
Bunchberry
Spotted Salamander
Bead Fern

Northern Leopard Frog
Bluebead

Shotbush

Blue-Spotted Salamander
Haymaids
Dulcamara
Green Frog
Heal-All
Common Eastern Bumblebee
Polecatweed

Confusing Bumblebee
Clayweed
Tansy
Squawvine
Get all 74 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Penobscot County County, Maine
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 Penobscot County County.
The Penobscot County ecosystem supports 74 documented wildlife species across 61 taxonomic genera. Located in Penobscot County, Maine, this area provides critical habitat with diverse natural communities. The location hosts 15 frequently observed species and 14 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Bangor, Penobscot County hosts 14% more species diversity.