Baku, April 7, AZERTAC Cranes are large, long-legged and long-necked birds. The cranes are tall wading birds of the family Gruidae.Unlike the similar-looking but unrelated herons, cranes fly with necks outstretched, not pulled back. Most have elaborate and noisy courting displays or "dances".Cranes resemble herons but usually are larger and have a partly naked head, a heavier bill, more compact plumage, and an elevated hind toe.There are 15 species of them worldwide and 3 species are dwelled in Azerbaijan.