Stork

Stork are large birds with long leg, long neck, long stout bills. There are many kinds of stork like Marabou stork, wooly-necked stork, painted stork and many others. All together there are 19 species of stork in six genera. Stork live in many regions of the world, tending to live in drier habitats than other birds like herons, spoonbills, and ibises. Many of the species of stork are migratory. Most of the stork species eat frogs, earthworms, insects, fish, small birds, and small mammals. If you want to know stork's scientific classification  well here it is:
     
                         Kingdom:     Animalia

                         Phylum:       Chordata

                         Class:          Aves

                                                                Subclass:     Neornithes  

                                                                Infraclass:    Neognathae

                                                                Superorder: Neoaves

                                                                Order:         Ciconiiformes

                                                                Family:        Ciconiidae

When they fly they tend to use soaring, gliding technique, which of course conserves energy. Their nests are often very large and old. Some stork's nest have been found to be 2 m ( 6 feet ) in diameter and about 3 m (10 feet) in depth. When they had build a nest they stick to each other like partners.