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AVIARY (from Lat. avis, a bird)

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Originally appearing in Volume V03, Page 62 of the 1911 Encyclopedia Britannica.
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AVIARY (from See also:Lat. avis, a See also:bird)  , called by older writers " volary," a structure in which birds are kept in a See also:state of captivity . While the See also:habit of keeping birds in cages See also:dates from a very remote See also:period, it is probable that structures worthy of being termed aviaries were first used by the See also:ancient See also:Romans, chiefly for the See also:process of fattening birds for the table . In See also:Varro's See also:time, 116—127 B.c., aviaries or " ornithones " (from Gr . 6pves opatOos, See also:bird) were See also:common . These consisted of two kinds, those constructed for See also:pleasure, in which were kept nightingales and other See also:song-birds, and those used entirely for keeping and fattening birds for See also:market or for the tables of their owners . Varro himself had an See also:aviary for song-birds exclusively, while See also:Lucullus combined the two classes, keeping birds both for pleasure and as delicacies for his table . The keeping of birds for pleasure, however, was very rarely indulged in, while it was a common practice with poulterers and others to have large ornithones either in the See also:city or at Sabinum for the fattening of thrushes and other birds for See also:food . Ornithones consisted merely of four high walls and a roof, and were lighted with a few very small windows, as' the-,birds were considered to See also:pine less if they could not see their See also:free companions outside . See also:Water was introduced by means of pipes, and conducted in narrow channels, and the birds were fed chiefly upon dried See also:figs, carefully peeled, and chewed into a pulp by persons hired to perform this operation . Turtle-doves were fattened in large See also:numbers for the market on See also:wheat and See also:millet, the latter being moistened with sweet See also:wine; but thrushes were chiefly in See also:request, and Varro mentions one ornithon from which no less than five thousand of these birds were sold for the table in one See also:season . The habit of keeping birds in aviaries, as we understand the See also:term, for the See also:sake of the pleasure they afford their owners and for studying their habits is, however, of comparatively See also:recent date . The beginning of See also:geographical See also:research in the 15th See also:century brought with it the See also:desire to keep and study at See also:home some of the beautiful forms of bird-See also:life which the explorers came across, and hence it became the See also:custom to erect aviaries for the reception of these creatures .

In the 6th century, in the See also:

early See also:part of which the See also:canary-bird was introduced into See also:Europe, aviaries were not uncommon features of the gardens of the wealthy, and See also:Bacon refers to them in his See also:essay on gardening (1597) . See also:Elizabeth of Bohemia, the daughter of See also:James I. of See also:England, when a See also:child, had an outdoor aviary at Coombe See also:Abbey near See also:Coventry, the back and roof of which were formed of natural See also:rock, in which were kept birds of many See also:species from many countries . Within recent years the method of keeping birds in large aviaries has received considerable See also:attention, and it is fully recognized that by so doing, not only do we derive See also:great pleasure, but our knowledge of avian habits and mode of living can thereby be very considerably increased . An aviary may be of almost any See also:size, from the large cage known, on See also:account of its shape, as the " Crystal See also:Palace aviary," to a structure as large as a See also:church; and the term is sometimes applied to the See also:room of a See also:house with the windows covered with See also:wire-netting; but as a See also:rule it is used for outdoor structures, composed principally of wire-netting supported on a framework of either See also:iron or woodwork . For quite See also:hardy birds little more than this is necessary, providing that See also:protection is given in the See also:form of growing trees and shrubs, rock-See also:work or rough wooden shelters . For many of the delicate species, however, which See also:hail from tropical countries, warmth must be provided during the inclement months of the See also:year, and thus a part at least of an aviary designed for these birds must be in the form of a wooden or See also:brick house which can be shut up in See also:cold See also:weather and artificially warmed . The ideal aviary, probably, is that which is constructed in two parts, viz. a well-built house for the See also:winter, opening outinto a large wire enclosure for use in the summer months . The doors between the two portions may be of See also:wood or glazed . The part intended as the winter home of the birds is best built in brick or See also:stone, as these materials are practically See also:vermin-See also:proof and the temperature in such a See also:building is less variable than that , in a thin wooden structure . The See also:floor should be of See also:concrete or brick, and the house should be fitted with an efficient See also:heating apparatus from which the See also:heat is distributed by means of hot-water pipes . Any arrangement which would permit the See also:escape into the aviary of See also:smoke or noxious fumes is to be strongly condemned . Such a house must be well lighted, preferably by means of skylights; but it is a See also:mistake to have the whole "roof glazed, at least See also:half of it should be of wood, covered with slates or tiles .

Perches consisting of branches of trees with the bark adhering should be fixed up, and, if small birds are to be kept, bundles of bushy twigs should be securely fixed up in corners under the See also:

roofs . The See also:outer part, which will principally be used during the summer, though it will do most birds See also:good to be let out for a few See also:hours on mild winter days also, should be as large as possible, and constructed entirely of wire-netting stretched on a frames work of wood or iron . If the latter material is selected, stout See also:gas-piping is both stronger and more easily fitted together than solid iron rods . If the framework be of wood, this should be creosoted, prefer-ably' under pressure, or painted with three coats of good See also:lead paint, the latter preservative also being used if iron is the material selected . The wire-netting used may be of almost any sized mesh, according to the sized birds to be kept, but as a See also:general rule the smallest mesh, such as half or five-eighths of an See also:inch, should be used, as it is practically vermin-proof, and allows of birds of any size being kept . Wire-netting for aviaries should be of the best quality, and well galvanized . The new interlinked type is less durable than the old mesh type, though perhaps it looks somewhat neater when fixed . See also:Provision must be made for the entire exclusion of such vermin as rats, stoats and weasels, which, if they were to gain See also:access, would commit great havoc amongst the birds . The simplest and most effectual method of doing this is by sinking the wire-netting some 2 ft . into the ground all See also:round the aviary, See also:Surface of and then turning it outwards for a ground .'f distance of another See also:foot as shown in the annexed cut (fig . 1) . The outer part of the aviary should be turfed and planted with See also:evergreen -seo and See also:deciduous shrubs, and be provided with some means of supplying an abun- FIG .

1 . See also:

dance of pure water for the birds to drink and bathe in; and a See also:gravel path should not be forgotten . Perhaps the most useful type of aviary is that built as above described, but with several compartments, and a passage at the back by which any compartment may be visited without the See also:necessity of passing through and disturbing the birds in other compartments . Fig . 2 represents a ground See also:plan of an aviary of this type divided into four compartments, each with an inner house ro ft. square, and an outer See also:flight of See also:double that See also:area . The outer flights are intended to be turfed, and planted with shrubs, and the gravel path has a glazed roof above it by which it is kept dry in wet weather . Shallow water-basins are shown, which should be supplied by means of an underground See also:pipe and a See also:cock which can be turned on from outside the aviary; and they must be connected with a properly laid drain by means of a See also:waste plug and an overflow pipe . An aviary should always be built with a See also:southern or See also:south-eastern aspect, and, where possible, should be sheltered from the See also:north, north-See also:east and north-See also:west by a See also:belt of See also:fir-trees, high See also:wall or See also:bank, to protect the birds from the biting winds from these quarters . When parrots of any See also:kind are to be kept it is useless to try to grow any kind of vegetation except grass, and even this will be demolished unless the aviary is of considerable size . The larger parrots will, in fact, bite to pieces not only living trees but also the woodwork of their See also:abode, and the only really suitable materials for the construction of an aviary for these birds are brick or stone and iron; and the wire-netting used must be of the stoutest See also:gauge or it will be torn to pieces by their strong bills . The feeding of birds in aviaries is, obviously, a See also:matter of the utmost 'importance, and, in See also:order that they may have what is most suitable, the aviculturist should find out as much as possible of the See also:wild life of the species he wishes to keep, or if little or nothing is known about their mode of living, as is often the See also:case with rare forms, of nearly related species whose habits and food are probably much the same, and he should endeavour to provide food as nearly as possible resembling that which would be obtained by the birds when wild . It is often, however, impossible to See also:supply precisely the same food as would be obtained by the birds had they their See also:liberty, but a substitute which suits them well can Fin .

Phoenix-squares

2.-Plan of 4-compartment Aviary for See also:

Foreign Birds. generally be obtained . The See also:majority of the See also:parrot tribe subsist principally upon various nuts, See also:seed and See also:fruit, while some of the smaller parrakeets or paroquets appear to feed almost exclusively upon the seeds of various See also:grasses . Almost all of these are comparatively easy to treat in captivity, the larger ones being fed on See also:maize, See also:sunflower-seed, See also:hemp, dari, oats, canary-seed, nuts and various ripe fruits, while the grass-parrakeets thrive remarkably well on little besides canary-seed and See also:green food, the most suitable of which is grass in See also:flower, chickweed, See also:groundsel and various seed-bearing weeds . But there is another large See also:group of parrots, the Loriidae or See also:brush-tongued parrots, some of the most interesting and brightly coloured of the tribe, which, when wild, subsist principally upon the See also:pollen and See also:nectar of See also:flowers, notably the various species of See also:Eucalyptus, the filamented See also:tongues of these parrots being peculiarly adapted for obtaining this . In captivity these birds have been found to live well upon sweetened See also:milk-sop, which is made by pouring boiling milk upon crumbled See also:bread or See also:biscuit . They frequently learn to eat seed like other parrots, but, if fed exclusively upon this, are See also:apt, especially if deprived of abundance of exercise, to suffer from fits which are usually fatal . Fruit is also readily eaten by the Tories and lorikeets, and should always be supplied . The foreign doves and pigeons form a numerous and beautiful group which are mostly hardy and easily kept and bred in captivity . They are for the most part See also:grain-feeders and require only small See also:corn and seeds, though a certain group, known as the fruit-pigeons, are fed in captivity upon soft fruits, berries, boiled See also:potato and soaked grain . The various finches and See also:finch-like birds form an exceedingly large group and comprise perhaps the most popular of foreignaviary birds . The See also:weaver-birds of See also:Africa are mostly quite hardy and very easily kept, their food consisting, for the most part, of canary-seed . The See also:males of these birds are, as a rule, gorgeously attired in brilliant See also:colours, some having See also:long flowing tail-feathers during the nuptial season, while in the winter their showy See also:dress is replaced by one of See also:sparrow-like sombreness .

The grass-finches of See also:

Australasia contain some of the most brilliantly coloured birds, the beautiful grass-finch (Poephila mirabili4 being resplendent in See also:crimson, green, See also:mauve, See also:blue and yellow . Most of these birds build their nests, and many See also:rear their See also:young, successfully in outdoor aviaries, their food consisting of canary and millet seeds, while flowering grasses provide them with an endless source of pleasure and wholesome food . The same treatment suits the See also:African waxbills, many of which are extremely beautiful, the crimson-eared waxbill or " See also:cordon-bleu " being one of the most lovely and frequently imported . These little birds are somewhat delicate, especially when first imported, and during the winter months require artificial warmth . There is a very large group of insectivorous and fruit-eating birds very suitable for aviculture, but their mode of living necessarily involves considerable care on the part of the aviculturist in the preparation of their food . Many birds are partially insectivorous, feeding upon See also:insects when these are plentiful, and upon various seeds at other times . Numbers of species again which, when adult, feed almost entirely upon grain, feed their young, especially during the early stages of their existence, upon insects; while others are exclusively See also:insect-eaters at all times of their lives . All of these points must be considered by those who would succeed in keeping and breeding birds in aviaries . It would be almost an impossibility to keep the purely insectivorous species, were it not for the fact that they can be gradually accustomed to feed on what is known as " insectivorous " or " insectile " food, a See also:composition of which the See also:principal ingredients generally consist of dried ants' cocoons, dried flies, dried powdered See also:meat, preserved yolk of See also:egg,l and crumb of bread or biscuit . This is moistened with water or mixed with mashed boiled potato, and forms a See also:diet upon which most of the insectivorous birds thrive . The various ingredients, or the food ready made, can be obtained at almost any bird-fancier's See also:shop . Although it is a good See also:staple diet for these birds, the addition of mealworms, caterpillars, grubs, See also:spiders and so forth is often a necessity, especially for purely insectivorous species .

The fruit-eating species, such as the tanagers and See also:

sugar-birds of the New See also:World, require ripe fruit in abundance in addition to a staple diet such as that above described, while for such birds as feed largely upon See also:earth-See also:worms, shredded raw meat is added with See also:advantage . Many of the waders make very interesting aviary birds, and require a diet similar to that above recommended, with the addi- tion of chopped raw meat, mealworms and any insects that can be obtained . Birds of See also:prey naturally require a meat diet, which is best given in the form of small, freshly killed mammals and birds, the See also:fur or feathers of which should not be removed, as they aid digestion . The majority of wild birds, from whatever part of the world they may come, will breed successfully in suitable aviaries providing proper nesting sites are available . Large bundles of brushwood, fixed up in sheltered spots, will afford See also:accommodation for many kinds of birds, while some will readily build in evergreen shrubs if these are grown in their enclosure . Small boxes and baskets, securely fastened to the wall or roof of the ' It has recently been stated by certain medical men that egg-food in any form is an undesirable diet for birds, owing to its being peculiarly adapted to the multiplication of the bacillus of septicaemia, a disease which is responsible for the See also:death of many newly imported birds . It is a significant fact, however, that insectivorous species, which are those principally fed upon this substance, are not nearly so susceptible to this disease as seed-eating birds which rarely See also:taste egg; and in spite of what has been written concerning its harmfulness, the large majority of aviculturists use it, in both the fresh and the preserved state, with no apparent See also:ill effects, but rather the See also:reverse . ~lg1sAYE'L.\P.ATX wiass yLAZESI .scx:Ss\ oyse& O sheltered part of an aviary, will be appropriated by such species as naturally build in holes and crevices . Parrots, when wild, See also:lay their eggs in hollow trees, and occasionally in holes in rocks, making no See also:nest,' but merely scraping out a slight hollow in which to See also:deposit the eggs . For these birds hollow logs, with small entrance holes near the See also:top, or boxes, varying in size according to the size of the parrots which they are intended for, should be supplied . In providing nesting accommodation for his birds the aviculturist must endeavour to imitate their natural surroundings and supply sites as nearly as possible similar to those which the birds, to whatever order they may belong, would naturally select . Aviculture is a delightful pastime, but it is also far more than this; it is of considerable scientific importance, for it admits of the living birds being studied in a way that would be quite impossible otherwise .

There are hundreds of species of birds, from all parts of the world, the habits of which are almost unknown, but which may be kept without difficulty in suitable aviaries . Many of these birds cannot be studied satisfactorily in a wild state by See also:

reason of their shy nature and retiring habits, not to mention their rarity and the impossibility, so far as most See also:people are concerned, of visiting their native haunts . In suitable large aviaries, however, their nesting habits, courtship, display, See also:incubation, See also:moult and so forth can be accurately served and recorded . The keeping of birds in aviaries is therefore a practice worthy of every encouragement, so long as the aviaries are of sufficient size and suitable See also:design to allow of the birds exhibiting their natural habits; for in a large aviary they will reveal the secrets of their nature as they never would do in a cage or small aviary . (D . S .

End of Article: AVIARY (from Lat. avis, a bird)
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