Photo: Raven in profile

211 of 576
common raven

credit: Donald Quintana

211 of 576

This beautiful black bird was photographed in Nome, Alaska. Our photo contributor Donald Quintana writes: “I keep thinking I should photograph them more often. They are smart, thinking birds.”

He’s right. According to the Cornell Lab of Ornithology, the common raven has been shown to solve an impressive number of difficult problems.

Would you like to see your nature photo featured on TreeHugger? Join the TreeHugger Photo Pool on Flickr and add yours to the group!