They have no feathers on their head and neck, so the black skin underneath shows up. This makes wood storks the only tall water birds with black, bald heads. Since they have no muscles attached to their voice box, they are very quiet birds. Every now and then they will croak like a bullfrog, or hiss like a snake. Wood storks have long, skinny legs and a long, curved beak.
Storks can glide for a long time on warm wind currents.
Sometimes they dive and flip as they soar down from high in the sky. When they do flap their wings, they look awkward and clumsy. Sometimes they fly in flocks with egrets and ibises. When the sun evaporates the urine, it cools them off, like sweat. They are the only type of stork native to North America.