A PDF field guide to the species reported in and around Hammonasset Beach 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 Hammonasset Beach State Park include Herring Gull, Ring-Billed Gull, Red-Breasted Merganser, Brant and Surf Scoter. Birds lead the list with 32 species, followed by 11 snails and other mollusks and 5 plants.
The 20 species reported most often here, of 50 in the full guide.

Rugosa Rose
Herring Gull
Ring-Billed Gull
Red-Breasted Merganser
Brant
Surf Scoter
Red-Winged Blackbird
Great Black-Backed Gull
Northern Mockingbird
Black Scoter
Baccharis
Oyster-Pest
Common Loon
Tree Swallow

Common Periwinkle
Osprey
Song Sparrow
Brown-Headed Cowbird
Shorelark
Red-Throated Loon