A PDF field guide to the species reported in and around Penobscot County, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
The animals people report most often in and around Penobscot County include Spring Peeper, Wood Frog, Spotted Salamander, Northern Leopard Frog and Blue-Spotted Salamander. Plants lead the list with 37 species, followed by 7 amphibians and 6 insects.
The 20 species reported most often here, of 50 in the full guide.

Spring Peeper
Wood Frog

Buckthorn
Bunchberry
Spotted Salamander
Bead Fern
Tell me what you're looking for, and I'll do my best to answer.

Northern Leopard Frog
Bluebead

Shotbush

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

Confusing Bumblebee
Polecatweed
Clayweed
Tell me what you're looking for, and I'll do my best to answer.
Tansy

Tricolored Bumble Bee