a tall water bird with very long legs.——朗文当代大辞典

A large grallatorial bird of the family Gruidæ, characterized by very long legs, neck, and bill. The name belongs originally to the common European crane, Grus cinerea, of an ashy-gray colour, formerly abundant in marshy places in Great Britain, and prized as food, but now extinct; about 15 closely-allied species are found in other lands.——牛津当代大辞典  @en