Ciconiidae

Description

Like herons, storks have long legs and a long stout bill, but the neck is shorter in most species, and when flying it is outstretched instead of being folded back into an ‘S’ shape. . Although many species in other parts of the world migrate over large distances, the three storks that occur regularly on Java are not migratory, but apparently move widely around the island or to neighbouring islands. Storks often use thermals of rising air to soar high into the sky, thereby conserving energy while spotting potential feeding grounds far below. Less dependent on wetlands than herons, they feed on a variety of aquatic and terrestrial prey, including fish, carrion and insects. Bill clattering is the only form of communication. Only three species have been recorded in Baluran National Park.

Flight

Slow flapping, alternating with gliding; also soaring at high altitudes.