A PDF field guide to the species reported in and around Holbrook Island Sanctuary State Park, 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 Holbrook Island Sanctuary State Park include Common Periwinkle, European Green Crab, Bullfrog, Goldenrod Crab Spider and Slaty Skimmer. Plants lead the list with 21 species, followed by 8 insects and 5 snails and other mollusks.
The 20 species reported most often here, of 50 in the full guide.
Bunchberry

Teaberry
Bluets

Goosefoot

Common Periwinkle

European Green Crab
Bullfrog
King Devil

Rugosa Rose
Brake

Goldenrod Crab Spider

Blueberry
Slaty Skimmer
Blue Dasher
Green Clearwing

Canadian Tiger Swallowtail