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Rh lying quite as far to the southward of the tropic of Capricorn. In India the northern range of the group is only bounded by the slopes of the Himalaya, and farther to the eastward parrots are not only abundant over the whole of the Malay Archipelago, as well as Australia and Tasmania, but two very well-defined families are peculiar to New Zealand and its adjacent islands (see and ). No parrot has recently inhabited the Palaearctic Region, and but one (the Conurus carolinensis, just mentioned) probably belongs to the Nearctic; nor are parrots represented by many different forms in either the Ethiopian or the Indian Regions. In continental Asia the distribution of parrots is rather remarkable. None extend farther to the westward than the valley of the Indus, which, considering the nature of the country in Baluchistan and Afghanistan, is perhaps intelligible enough; but it is not so easy to understand why none are found either in Cochin China or China proper; and they are also wanting in the Philippine Islands, which is the more remarkable and instructive when we find how abundant they are in the groups a little farther to the southward. Indeed, A. R. Wallace has well remarked that the portion of the earth's surface which contains the largest number of parrots, in proportion to its area, is undoubtedly that covered by the islands extending from Celebes to the Solomon group. “The area of these islands is probably not one-fifteenth of that of the four tropical regions, yet they contain from one-fifth to one fourth of all the known parrots” (Geogr. Distr. Animals, ii. 330). He goes on to observe also that in this area are found many of the most remarkable forms—all the red Lories, the great cockatoos, the pigmy Nasiternae and other singularities. In South America the species of parrots, though numerically nearly as abundant, are far less diversified in form, and all of them seem capable of being referred to two, or, at most, three sections. The species that has the widest range, and that by far, is the common Ring-necked Parakeet, Palaeornis torquatus, a well-known cage-bird which is found from the mouth of the Gambia across Africa to the coast of the Red Sea, as well as throughout the whole of India, Ceylon and Burmah to Tenasserim. On the other hand, there are plenty of cases of parrots which are restricted to an extremely small area—often an island of insignificant size, as Conurus xantholaemus, confined to the island of St Thomas in the Antilles, and Palaeornis exsul to that of Rodriguez in the Indian Ocean—to say nothing of the remarkable instance of Nestor productus (see ).

The systematic treatment of this very natural group of birds has long been a subject of much difficulty. A few systematists, among whom C. L. Bonaparte was chief, placed them at the top of the class, conceiving that they were the analogues of the Primates among mammals. T. H. Huxley recognized the Psittacomorphae as forming one of the principal groups of Carinate birds, and they are now generally regarded as forming a suborder Psittaci of the Cuculiform birds (see ). Owing to the erroneous number of forms and the close similarities of structure, the subdivision of the group has presented great difficulties. Buffon was unaware of the existence of some of the most remarkable forms of the group, in particular of

Strigops and Nestor; but he began by making two great divisions of those that he did know, separating the parrots of the Old World from the parrots of the New, and subdividing each of these divisions into various sections somewhat in accordance with the names they had received in popular language—a practice he followed on many other occasions, for it seems to have been with him a belief that there is more truth in the discrimination of the unlearned than the scientific are apt to allow. In 1867–1868 Dr O. Finsch published at Leiden an elaborate monograph of the parrots, regarding them as a family, in which he admitted 26 genera, forming 5 subfamilies: (1) that composed of Strigops, only; (2) that containing the crested forms or cockatoos; (3) one which he named Sittacinae, comprising all the long-tailed species—a somewhat heterogeneous assemblage, made up of (q.v.) and what are commonly known as parakeets; (4) the parrots proper with short tails; and (5) the so-called “brush-tongued” parrots, consisting of the (q.v.) and  (q.v.). In 1874 A. H. Garrod communicated to the Zoological Society the results of his dissection of examples of 82 species of parrots, which had lived in its gardens, and these results were published in its Proceedings for that year (pp. 586–598, pls. 70, 71). Summarily expressed, Garrod's scheme was to divide the parrots into two families, Palaeornithidae and Psittacidae, assigning to the former three subfamilies, Palaeornithinae, Cacatuinae and Stringopinae, and to the latter four, Arinae, Pyrrhurinae, Platycercinae and Chrysotinae. That each of these sections, except the Cacatuinae, is artificial any regard to osteology would show. In the Journal für Ornithologie for 1881 A. Reichenow published a Conspectus Psittacorum, founded, as several others have been, on external characters only. He makes 9 families of the group, and recognizes 45 genera, and 442 species, besides subspecies. His grouping is generally very different from Garrod's, but displays as much artificiality: for instance, Nestor is referred to the family which is otherwise composed of the cockatoos.

The system now generally accepted is based on a combination of external and anatomical characters, and is due to Count T. Salvadori (Cat. Birds, Brit. Mus. XX., 1891), and H. F. Gadow (Bronn's Thier-Reich, Aves, 1893). About 80 genera with more than 500 species are recognized, divided into the family Psittacidae with the subfamilies Stringopinae, Psittacinae and Cacatuinae, and the family Trichoglossidae with the subfamilies Cyclopsittacinae, Loriinae and Nestorinae.

The headquarters of parrots are in the Australian Region and the Malay countries; they are abundant in South America; in Africa and India the number of forms is relatively small; in Europe and North Asia there are none now alive, in North America only one. Parrots are gregarious and usually feed and roost in companies, but are at least temporarily monogamous. Most climb and walk well; the flight is powerful but low and undulating in most. The food is varied but chiefly vegetable, whilst parrots are alone amongst birds in holding the food in the claws. The usual cry is harsh and discordant, but many softer notes are employed. A large number of forms learn in captivity to talk and whistle, the well-known red-tailed grey parrot (Psittacus erithacus) of tropical Africa being pre-eminent. The eggs are laid usually in holes in trees, rocks, or the ground, no lining being formed. The larger species produce one to three, the smaller as many as twelve, the colour being dull white. The young when hatched are naked and helpless.

 PARROT-FISHES, more correctly called , marine fishes of the family Scaridae closely allied to the wrasses or Labridae. The family contains eight genera of which the principal are Scarus, Pseudoscarus, Odan and Sparisama. They are easily recognized by their large scales, of which there are from twenty-one to twenty-five in the lateral line, by having invariably nine spines and ten rays in the dorsal fin and two spines with eight rays in the anal, and especially by their singular