Common Cormorants and Anhingas are both similar-looking semi-tropical water birds. They fly well, and also paddle around lakes, ponds, and rivers. The Common Cormorants also can frequently be found in salt water marshes or along the shore of the ocean. Both birds eat fish, aquatic snails, worms, frogs, tadpoles, crayfish, and small turtles. The Common Cormorants also eat some shellfish as well as small crabs.
One distinct physical difference between these birds is that the Anhinga has a straight strong bill that is sword-like. The Common Cormorants also have a sturdy bill but it has a slight downward hook at its tip. Both birds often can be seen with their wings outspread to dry. Both also roost in the trees. I took these pictures last week here in my area at two smaller lakes and at a pond. Please click on the thumbnail image to see the larger picture. Enjoy!