Q:Information:  - Ciconia is a genus of birds in the stork family . Six of the seven living species occur in the Old World , but the maguari stork has a South American range . In addition , fossils suggest that Ciconia storks were somewhat more common in the tropical Americas in prehistoric times . These are large storks , typically 100 cm tall , with a 180 cm wingspan and a long thick bill . Members of this genus are more variable in plumage than other storks , but several species have black upper bodies and wings , and white belly and undertail . Juveniles are a duller , browner version of the adult . Ciconia storks are gregarious and colonial breeders , and pairs stay together for life . They typically build large stick nests in trees , although the maguari stork will nest on the ground and at least three species will construct their nests on human habitations . One of these , the white stork , is probably the best known of all storks , with a wealth of legend and folklore associated with this familiar visitor to Europe . These storks feed on frogs , insects , young birds , lizards and rodents . They fly with the neck outstretched , like most other storks , but unlike herons which retract their neck in flight . The migratory species like the white stork and the black stork soar on broad wings and rely on thermals of hot air for sustained long distance flight . Since thermals only form over land , these storks , like large raptors , must cross the Mediterranean at the narrowest points , and many of these birds can be seen going through the Straits of Gibraltar and the Bosphorus on migration .  - In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs.  - Birds (Aves), also known as avian dinosaurs, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds.  - A genus ( genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.  - Storks are large, long-legged, long-necked wading birds with long, stout bills. They belong to the family Ciconiidae. They are the only family in the order Ciconiiformes, which was once much larger and held a number of families.  - Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen or a scientific name; more informally it is also called a Latin name. The first part of the name identifies the genus to which the species belongs; the second part identifies the species within the genus. For example, humans belong to the genus "Homo" and within this genus to the species "Homo sapiens". The "formal" introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work "Species Plantarum" in 1753. But Gaspard Bauhin, in as early as 1623, had introduced in his book "Pinax theatri botanici" (English, "Illustrated exposition of plants") many names of genera that were later adopted by Linnaeus.    Given the information, choose the subject and object entities that have the relation of 'parent taxon'.
A:
ciconia , ciconiidae