- Guide to 1,200 common native and naturalized New England plants, with color photographs (website)
Source: New England Wild Flower Society - Weed images (website)
Source: Rutgers University - Tree identification (website)
Source: Rhode Island Woods - RI Native Plant Guide (website)
Source: The University of Rhode Island - Threatened and Endangered Species (website)
Source: Rhode Island Woods
- Wild Bees of RI (PDF)
Source: Rhode Island Fish & Wildlife - Butterflies of RI (PDF)
Source: Rhode Island Fish & Wildlife - Frogs & Toads of RI (PDF)
Source: Rhode Island Fish & Wildlife - Snakes of RI (PDF)
Source: Rhode Island Fish & Wildlife - Turtles of RI (PDF)
Source: Rhode Island Fish & Wildlife