- Piping Plover
- Roseat Tern
- Rød ulv
- New England Cottontail
- Nord-langøret flaggermus
- Eastern Cougar
Statens truede arter i Connecticut
- Amerikansk bittern
- Amerikansk ål
- Brook Floater (blåskjell)
- Eastern Box Turtle
- Frosted Elfin (sommerfugl)
- Gopher Tortoise
- Hellbender (Salamander)
- Hines Emerald Dragonfly
- Lille brun flaggermus
- Loggerhead Sea Turtle
- Maritime Ringlet (sommerfugl)
- Monark sommerfugl
- Northern Cricket Frog
- Northern Dusky Salamander
- Northern Map Turtle
- Ocellated Salamander
- Pickerel frosk
- Piping Plover
- Red-Bellied Cooter
- Roseat Tern
- Sebeach Amaranth
- Kortøret ugle
- Glatt grønn slange
- oppdaget skilpadde
- Swamp Darner (Dragonfly)
- Tre-toed Box Turtle
- Tricolored Heron
- Wood Turtle