The nest is intended to protect eggs and chicks from overheating and supercooling. During the accidents of eggs, it helps to keep parental heat. Thanks to the nest of the chicks during its full dependence on parents grow in comfort and safety.

Many birds have a samester choosing a place for nest on its territory, and the female usually participates in its construction. Joint construction occurs very often.

The pigeons of the male collects building material, and the female builds a nest. Crow the material collect both partners, but the construction is engaged exclusively for female. Dyatlov and winterwind both partners hollow out a hollow in a tree. Swans and predatory birds also build nests with couples.

Most birds building material for the nest serve plants. A wooded area provides the widest choice - from large sticks to thin twigs, roots and cortex strips. Hummingbirds use lichens. Asian slats, known as porn, choose large leaves on one branch, stitch their edges and arrange inside the nest. Hanging zonotrychia and bobolink, nesting on meadows or fields, use cultural and weed herbs. Waterfowl - Varki, Lyshuhi, Radiers - Collect water plants for nests.

Birds are very inventive in relation to many other materials, both natural and artificial. Often used wool, feathers and a web. Swallows and flamingo make nests from dirt. The smoky needle attaches the socket to the surface with saliva. Raga lobs, paper, plastic also often finish their age in bird sockets.

For centuries, birds nest among people. It is considered traditional that storks come with nests on chimneys. Striges prefer the pipes in the natural objects. Pigeons have long mastered the cornices of buildings. Owls live in barn and bell tower; Swallows - under the bridges and roofs, the house sparrow is called so because of the place where the nests.

Bunches give the shelter to birds nesting in the duplach, including the Sielyas, rags and even some ducks (Carolinskaya duck often uses drawers). The houses are clearly appreciated by the human "gifts": they nest in any floor subject - a rusty tin can, an empty flower pot, an old boot. In the past in the Indian villages, purple forest swallows nested in empty bottle pumpkins hanging on branches. Today, this species is one of the most voracious insectivores - the desired inhabitant of cities and villages throughout North America. They live in special apartment boregirls installed at high columns.

Construction of the nest

The most common shape of the nest is invalid. Her preferred Drozda, reels and other small birds, nesting on land. Such nests are obtained by tamping the building material. The female Drozda builds the nest itself, although the male and helps it, bringing the material. Finding a suitable place - a horizontally growing bitterness, a fork on a tree or a comfortable ledge - a bird begins to squat and circling around it. Sometimes there are several places. With the help of the beak and feet, the female builds out of prudinee and blades the basis of the future nest. Standing in the middle, she stacked around himself softer materials, forming walls, then spinning on the spot, tamping the construction of breasts and wings, so the compact bowl is formed. After that, a litter is made from the earth and grass in the form of a bowl, and, finally, from the inside the nest is lined with a dry and soft layer. All construction takes from 6 to 20 days.

Colonies of birds

More than 95% of all seabirds - from penguins and vuls to the petrels and cumbers - and almost 15% of the others nest with the colonies. The colonial lifestyle favors contacts between potential sexual partners. The screams and the actions of the neighbors encourage birds to break into the pairs, mate and arrange the nests more or less simultaneously. Due to this, all chicks hatch for a short period of time, so that predators are not able to eat all and cause less damage. In addition, in the colony you can quickly find a replacement for the deceased partner and get information about the location of food. The colonial nesting allows to defend joint efforts.

For any bird it is very important to protect the chicks from the attack of predators. First of all, the role is played by the choice of place for the future nest. Many species rely on disguise, for example, cover the nest with leaves or build it in Nore. Inaccessibility is also considered an advantage. High Tree Top, Coastal Rock, Isolated Island will provide protection from land predators. Tropical worm suspended elongated, similar to the bag of nests on the tips of thin twigs, leaving any snakes and other predators-tree.

The nests play an essential role in breeding birds. The feathers are the most skilled architects in the animal world. Their buildings are often used as housing and other creatures.

Already warmly, as a couple of long-tailed sinicles began to work. These birds are one of the most skilled nest builders in Europe. Although they work in the morning to night, at the end of the architectural masterpiece they will take about 18 days. In the form of a nest, woven from twisters, pieces of lichen, a certain number of feathers, hair, web, scraps of rope, flasks of fabric and even petals, resembles a ball or egg. It is built by the trunk itself or in the branch fork and is equipped with a hole in the side wall - the velocity, and inside with feathers, soft down and woolly.

Fans of comfort

Sincasses-Remezes, relatives of long-tailed sinitsa - no less skilled builders. They suspend their nests on the branches of trees, often above the water. Using dry grass and vegetable fluff as building materials, for example, saving earriors or rubbers, the remlications are gossipped with a design that resembles a mitten with a sliced \u200b\u200bfinger.

The construction of the nest of the remresses is engaged only by the male. At the beginning of dry grass, firmly bonded with a branch, he glowers a kind of rope like, and then at her end makes a loop around which and builds a closed bag with a bottleneck closed on all sides. Paper chicks appear on the light and spend the first days of life in this cozy house.

Minimalist builders

Some birds, on the contrary, are content with unnecessary nests. Many rzhankiy - Cabisians, Rzhanki and Zuyki - nest right on Earth and lay eggs in shallow pits, sometimes barely covered with grass. Cayra lay eggs on bare ledges of rocks, often even slightly inclined, from which the egg seemingly should immediately roll down. But this does not happen due to its cone-shaped form: the egg only rides in a circle, but does not fall. However, the most amazing example of nesting minimalism is the white crash living in the tropics: it puts out the only egg right on the tree branch - in some kind of its development.

Everything will go into business

Most geese and ducks build nests on earth near the water. To make a nest more cozy, the female usually wipes it with feathers and pumped, pulled out of their chest. Especially famous for the soft and warm octoch of Gaga - ducks, nesting in the supremor regions. People collect it from the nests for sewing quilted blankets and warm down jackets.

Many birds are predatory, as well as storks use the same nest from year to year. Oruls nest often serves several decades and achieves huge sizes. So, the height of the nest of the White Orlana can reach three meters. The plexus of large branches in the nests of storks is often attracted by sparrows and other small birds, which are easily attached to them their simple dwellings.

Nest colony

Many feathers nest colonies. Their nests are distinguished by incredible variety. For example, a pocket formed by a fat fold of the belly is served by the imperial penguins of the nest - it covers an egg that holds the male on the web paws, standing on the snow and heating his warmth of his body.

The permanent period lasts about 64 days. All this time, selfless dad does not eat anything. To lose less heat, males are knocked into dense groups, alternately occupying warmer places in the middle.

Noisy colonies nest and many types of models living in Africa south of Sahara. Birds build their nests on flexible branches, hard to reach predators. The nest must be simultaneously strong enough to withstand the weight of chicks, and it's easy for the branch to be broken under his weight. Filters brilliantly coped with this complex engineering task. Construction skill has to learn: young males train on training models of nests. Technology used with weaves used between weaving and weaving. Their nests are similar to baskets, skillfully woven usually from dry rods. The models have received their name: they really know how to "spin" thick threads from vegetable fibers, and in addition, knit knots, fastening these threads. As a result, the birds manage to construct very strong nests - often close to each other, such as, for example, by public facilities. Such a "communal" nest looks like a multi-storey house with a huge number of inputs, each of which leads to a separate nest. Sometimes this design weighs a whole ton!

Filter bricklayers

Some birds build nests from crude land or clay, such as swallows whose nests can often be seen under cornices and balconies. Wielding the beak as a trowel, the swallow lays the lumps of clay layer behind the layer, building a cupid nest. Located at the top of this cup, the entrance to different types may differ in size. After drying, the socket becomes very durable. Pink flamingos are emitted from El Holliks with a deepening at the top where the female puts the egg. The nests in the colonies of Flamingo are located so close that the baseful birds can barely move. Similar sockets are built and nesting on Olushi Islands. Salangani-having fun in Tropical Asia nests with huge colonies in coastal caves. Their nests are blinded from dried saliva. People use them in food. Soup from "Swallow nests" - a popular dish of Asian cuisine, highly valued by gourmets.

A large rocky crawler is deceiving clay spacious cleaners in rocks or builds a bulky nest from the cliff wall.

An even more impressively looks like a nest of a red-breeder - a small bird from the detachment of sparrow-like, living in South America's pampas. On the thick branch of the tree of the tree, the liver builds out of clay with an admixture of vegetable material, a massive nest similar to an old stub. The nesting chamber is separated from the "hallway" by the partition. The nest weighs up to 5 kg, and the weight of the bird itself does not exceed 75 g.

Individual style

Nests and many other animals are constructed. Mouse-baby gossip on the stems of cereals a round cradle from grass. For construction, it uses live leaves of neighboring plants, so its nest remains greenish and merges with the surrounding herbs: predators notice it is not easy.

Small rodents and rabbits arrange nests from grass and wool in their holes so that newborn cubs are warmer and more cozy.

Gorilla and chimpanzees also build nests, but not for breeding, but for rest. When the evening comes, they begin to weave from branches and leaves massive platforms on Earth or lower branches of trees. These monkeys never use the same nest again.

Skilled architects are found among the inhabitants of the underwater world. Some rucks allocate a large number of mucus from which the "sleeping bag" constructs. It is fish and rest at night. Hid in such a cocoon of Guann is less noticeable for predators.

Construction technique, the final form and the main characteristics of bird buildings - first of all, their strength and heat capacity - is determined by the properties of the nest material.

Thick, strange branches of trees and shrubs of birds just fold into a bunch, trying to customize them as close as possible to another. In this way, it is arranged on the trees their massive nests platforms are large predatory birds and storks, achieving truly outstanding results.

Perennial nests

Being once folded, a nest is becoming a well-known terrain for many years. Its not one ten years will occupy different individuals, which, by virtue of natural hard work, will contribute to the accumulation of nesting material. Platform thickness will grow from year to year, the platform will turn into an impressive tower.

The famous nest of Belogolovoy Orlana under the vermilion in Ohio (USA) had 2.5 meters in diameter and more than 3 meters height with weight about 2 tons. Probably, this is the most massive construction of feathered from those that can be called a typical nest without any stretching, designed to remove the offspring of the married couple. Only a little inferior to this colossal construction of the nest of the Pacific White Orlans on Kamchatka. The nest of the black grid in dimensions resembles the wheel from the heavy dump truck itself, reaching a two-meter diameter and almost meter thickness. In its walls, using the peace-friendly owners, there are whole bird families who fully tolerate each other.

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Materials for building nests

Many birds resort to the same simplest layer laying technique. Near the water birds, the material is not bitch, but a variety of fragments of aquatic plants. The material is stacked in a wet state that when drying, it informs the construction of additional strength due to the effect of "gluing" drying fragments.

Little birds with miniature nests among favorite materials include a web, and they spend a lot of time on her searches. Being sticky and durable, it acts as a cementing material, fastening separate layers of dry grass, and perfectly ensures the attachment of the sockets to the branches of the tree.

Tropical nectarian nests

The nests of tropical nectants in their design are very peculiar and easily recognizable. Most types of construction looks like a strongly elongated pear, hanging on the tip of a thin twig or suspended to the bottom side of a palm or banana leaf. In the lower extended part of the "pear", a closed nesting chamber with a narrow side inlet is satisfied, usually covered on top with a small visor. The construction of a very miniature, and even the baby-nekthnica inside is not quite, so that the head of the long curved beak is almost always visible outside. The main building material is the vegetable down, bonded with a large amount of web, which is used for hanging the socket.

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Birds Slices-Nests

Thanks to a large number of web, flickering in the sun rays, the nests of some species look very smartly and reminded the Christmas toys, who is misunderstood on the palm. In general, the love of nectaries to the web is all-absorbing nature - the Russian name of the spikes, applied to some representatives of this group of feathers, should be changed to the Paukerman. Some necars do not build nests at all. Finding in a secluded corner in the crown of a tree a good tightness of the web, they slightly sharpen it in one place and eggs are laying in the resulting trays.

Nests Kamyshivki

Restable to the mention of the nest of reeds, artfully fortified on the vertical stems standing next to each other. The stems pass through the side walls of the nest, which is held on the supports mainly due to friction or "sticks" with the help of lubrication from yals and tina. In the form of the jack of replacement resembles a cylinder or a ball with a truncated vertex, neatly retinted from blades and cane leaves. The edges of the tray are always very tight, the interior is sometimes "plastered" all the same tina, which, hungry, forms a smooth surface. Sometimes recycles attach the nest to live, growing nettle stems, Tolody or Ivan tea, and for the month, the construction of the construction before the deployment of chicks, it sometimes rises almost half meter. The nest is attached by the side walls to the reed stalks.

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"Pottery Masters" - clay nests

Crude clay soil is also included in the catalog of building materials of feathery. The main bid on it was made swallows, rocky crawls, soupai larks and some representatives of the family with the eloquent name of the birds of the cookie. Molding nests are among the most skilled reins for feathered and resemble pottery products. They are shaking out of small mumps of clay and therefore almost always have a characteristic finely bug-in surface, so that by the number of hillocks can be quite accurate, how many portions of the material was laid during the construction process.

Supiy Zhavoronki.

Supiy Larks - small birdwood painted birds living in arid areas of Australia. Contrary to the title, from an evolutionary point of view, they are more about the croven birds and in fact resemble forty with half cropped tails. They are quite satisfying the simplest discharge-shaped nest-open nests, fortified on the branches of trees and typical for most crowned. The only difference is that the lark nests are entirely molded from clay. This gives only one advantage - the ability to build on thin horizontal branches, "sticking" to them to them, while for nests from the "standard" material, the properties of cement not possessing, it is necessary to look for a branch for a branch or to strengthen them near the barrel for which There may climb a stembed or snake.

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Great Rocky Snacks

The nest of a large rocky cradle looks like a narrow-tempered jug, glued down to a rock. The jug is jug, that is, the entrance to the socket is directed down and the sidelines. Weigh such a "pitcher" is usually about 4-5 kilograms, but there are more massive buildings. The wall thickness reaches 7 centimeters, and the strength is such that it is impossible to break their hands. As a cementing solution, the mucus of crushed caterpillars, beetles and butterflies are used, ruthlessly swinging them on the surface of the nest, which over time here and there is covered with a motley pattern from the wings of unfortunate victims.

Sockets swallows

The stucco sockets of swallows is distinguished by a wide variety of forms. The most simple looks at the top of the village of rustic swallows - exactly half of the cut, neatly cut along the cup, glued along the cut to the wall, certainly under the cover of some visor - a cornice or rock ledge. Urban swallows pose closed on all sides the nest with a narrow side entrance. Most often, the construction in shape is approaching the quarter of the ball, attached from above and behind two mutually perpendicular planes - usually to the wall and visor of the roof.

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The nest of the redhead swallow is distinguished by the extraordinary grace of the form. It is a half cut along the pitcher with a rather long neck and attached straight to the ceiling.

Bird's nests

In the art of handling clay inhabitants in the Argentine Pampas, the bird-liver competitors has no competitors. In size and form, its construction resembles a soccer ball attached to a durable tree branch or a pillar top. In appearance, it looks uncomplicated, but it causes respect for its solidity, reaching 10 kilograms.

Side entrance leads to a fairly spacious interior - a kind of lobby, to the back wall of which the nesting chamber is attached to the rear wall - a deep pocket from clay, something similar to the nest of a rustic swallow. Squeeze into this "pocket" is not easy, because between the ceiling of the lobby and the upper edge of the "pocket", the cooks leave a very narrow slit, so they can not be afraid of the unattended guests.

Why does birds build nests from clay?

The clay of the militia during construction and gives high strength to finished buildings. Why did these advantages proved to be in demand by the "construction industry" of the feathery in such a limited scale? Wide consumption of clay for the construction of bird nests interfere with its endless whims depending on the weather. It is too hot for her, and she dries out, often forcing for a long time to suspend the construction already started. That, on the contrary, too raw, and just laid clay layers refuse to dry and hardwood, which also entails an unplanned pause in construction.

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In addition, clay nests are preferably built in the shade. Once in the sun, they can dry and collapse, and the chicks in the hot clay "stove" sit out to sit out. Therefore, the swallows like it to be arranged under the roofs of the buildings, they avoid building nests on the rocks of the southern exposition and almost always stubborn them under the hanging rocky eaves, and the cooks strive to put eggs as early as possible in the spring, until the sun gained even full strength.

Finally, clay nests are very laborious. To build your very small nest with ideal weather and full of material, a pair of urban swallows must be delivered from 700 to 1500 portions of clay (excluding obdicated), which takes no less than ten days. The burning and rags with their massive nests require at least 2,000 lumps, and the construction accompanied by inevitable downtime is stretched for several weeks. The cooking do not hide the nests from the Sun and therefore forced struggle to increase their mass to reduce the speed of their heating and reduce the swing of temperature fluctuations.

But with all the shortcomings, stucco nests still opened a completely new approach to the security problem. Swallows and crawls have the opportunity to "stick" their houses on the most steep cliffs, hanging over the swarms of mountain rivers or falling into bottomless abyss, under the ceiling caves and grottoes among the mysterious twilight and eternal dampness, in words, in such places where predators are unable to get . In addition, the sockets are flattened in the form of chambers closed on all sides with a narrow entrance, perfectly protect offspring, and on occasion - and parents from rain and cold.

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Birds are not able to fly

With the help of clay soil, you can cut the size of the inlet in the hollow, as our ordinary rampage arrive. They will settle mainly in the hollows of large birdwoods with a flyer about 50-60 millimeters in diameter, while 35 millimeters are quite enough. The difference is eliminated by the rapid, diligently making the flyer with clay, shel or manure.

This activity has a purely instinctive nature. Even if the range nests in a hollow with a little letter, he still generously deats the clay of the tree of the tree around the flyer.

"Do not care .. and build"

Sockets of Streach

The ratio of the haircuts to the device of its nests can be described as "spraying". The main building material during construction is its own saliva, which has the ability to instantly harden in the air.

Strizh is the best flying among all birds. He lives on the fly - hunting insects, quenching thirst, plays a wedding, resting, sleeping and so on.

The most famous representative of the thyroidity of the rifle, numbering 58 species, is black haircut - the inhabitant of urban attics and birdhouses. The form of its nests largely depends on the configuration of the socket room, the presence of someone else's nest material in it. Basically, the nest looks quite ordinary and is a kind of squeezing with raised as a saucer edges.

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From the point of view of the design features and the construction costs, the most difficult and time-consuming nest is building a Caensky haircut, living in Central and South America. The building is suspended to the hanging rocky earder and looks very much like a thick icicle with a broken edge. By your device, the nest is a bottom tube from below. Clinging to sharp claws, the haircut climbs on the protrusion of the inner wall, where the egg lies. At the top of the tube there is another false entrance, which ends with a dead end. The length "icicles" exceeds 60 centimeters, which is four more length of the builder himself. It is not wonderful that the construction takes almost half a year and requires patience and dedication from birds. Called in the air of plant fibers and feathers and, of course, produce saliva in an amount sufficient for construction, is not easy.

With the help of saliva, the haircuts have the ability to glue eggs at the place of reaching - this allows them to do the most tiny nests and to raise the laying in the most incredible position.

The nest of palm string, widespread in the tropics of the oriental hemisphere, in shape and size resembles a tablespoon without a handle. This "spoon" is glued to the underside of a hanging palm leaf almost in a vertical position. Eggs, naturally, are also glued - without it, they will fall to the ground. The "newborn" chicks are tightly driven by sharp curls into their hanging cradle and hang so a few weeks, as the parents have hung before that.

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Palm palm nest flashes from tropical shower palm tree. Crested haliers in the protection of their nests from rains are relying only on themselves. Compared with its own magnitude, they build the most miniature nests among all birds.
But not from a good life, but for the jack to be completely closed from the rain with its own body.

Meanwhile, in the nesting places of these birds in the conditions of a tropical climate it rains go daily, as a schedule - immediately after lunch, and there are strong to an eye. The construction is a tiny shelf of several pieces glued with each other, vegetable fibers and flocks, glued to the side of the tree branch. There is enough space only for one eggs: the crucible bird has to sit on the branch, because the shelf will not stand it. Therefore, the branch, where the nest is attached, should not be thicker to the finger - otherwise it's not to grab my fingers. Sitting under violent tropical shower, among the raging thunderstorm, crested strife is worthy to become a symbol of the parental dedication of the feathery.

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"Carpenters" and "Exchanges"

Nests Dyatlov

Which professions did not master the feathery in pursuit of the maximum comfort and safety of their nests! Some had to even master the skills of carpenters and excavators. These skills and those and others are based on the skillful use of the same working tool - their own strong beak, which, depending on the circumstances, can be used as chisel or instead of shovels. Therefore, the profession of carpenter and excavation in the world of feathered is quite closely connected with each other.

Most of the 200 varieties of Woodles common throughout the light are the original forest inhabitants, and there are no equal in the art of handling trees. When the main forest "carpenter" is desirable - enters the excitement and is taken seriously, a chips of up to fifteen centimeters diffuse a fountain around the construction site. Zhelnoy is the largest of our woodpeckers, the size of almost crowned, so needs a spacious "apartment." The depth of its vapla reaches 40 centimeters, the inner diameter is 25 centimeters.

"Construction" in turn lead both partners, and it rarely takes less than two weeks. The work goes at an altitude of not lower than 3 meters from the ground, and some pairs are closed by almost 15 meters. Therefore, early spring, until the grass rose, a tree, challenged with a designer, was published producing a large white semicircle, standing at a distance of 10-12 meters from the barrel. The heap of this species is even long-abandoned by the "builders", it is not difficult to learn in the form of the flyer - usually it is not round, like other woodwood, but ellipsed, and sometimes almost rectangular, elongated along the trunk.

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Most dyatlov every year hollow out a new "house"By passing the old on the "secondary market" and speaking in the role of real benefactors in relation to other birds that are experiencing chronic need in Duples. The heap of big motley dyatla, the most numerous and widely known "carpenter" of Russian forests, are in mainly small singing pichugi - mukholovki, horikharvostka, tits. They are quite satisfying the room with a diameter of 14-15 and a depth of 20-25 centimeters. But it is especially important and even indispensable for forest feathers, the activities of Znoral, whose bulk housses give a refuge with such large birds as owls, pigeons, crochali and Gogoli.

In modern forests, old dumpy patriarch trees almost translated, so the owls, riots, clintuham suitable natural hollow is almost impossible to find. Unlike other dyatlov, those who are inclined to change their place of residence annually, desires a long-term attachment to the old Dupels, which does not prevent it at all, however, to engage in the spring of the construction of new ones - "Property".
With all the skill, the woodpecifices are still rarely dried from beginning to the end to hammer the hollow in solid wood of a completely healthy tree. Therefore, with a favorite tree, which goes under the hollow, almost all the woods are considered aspen, with its soft wood exposed to the core rot. It is possible that, tapping on the trunk before the start of the "construction", the woodpecker determines whether it is worth starting work on this tree or better search for another.

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The dwarf woodpecker was well established - one of the smallest representatives of forest carpenters, inhabitants in the bamboo forests of Himalayas and Indochina. The bamboo barrel inside is hollow and divided into sections of partitions-interstitial. The bird sufficiently comprehend the wall of the trunk in 10-20 centimeters above the intercouss - and its disposal turns out to be a completely ready nesting chamber.

The redhead duiter dwelling in the same region does not build a hollow at all, but takes the chicks inside the massive and certainly residential nests of large wood ants, nicknamed "fiery" for the liveliness of character and readiness immediately and for any occasion to have powerful jaws and poisonous sting.

The structural material of ants is a peculiar and fairly durable "cardboard", made of thoroughly chewed and mixed with salivary fibers. Dyatlah do a hole with a diameter of about 5 centimeters in the shell of the forming nest and lay their eggs directly among the insect brood cameras. The secret of the loyalty of ants, whose incredible aggressiveness is known to all the inhabitants of the jungle, in relation to the woodpeckers still not solved, especially since the feathers do not differ modesty and regularly eat ant dolls, and not even interrupting reaching.

Ring holes require a concentrated effort and takes a lot of strength. But the couple of wintering works with great enthusiasm, and the spouses are not only not seen from work, but they strive to make as much as possible contribution to the construction and with great impatience wait for their turn.

Finished Nora is a narrow tunnel of thirty centimeters long to three meters, which goes horizontally or with a small slope. The input of Nora is always facing the river, and in its depths there is a round nesting chamber with an apple size. This is a children's child who can freely develop up to five chicks.

Among the feathers there are a lot of species that themselves are not driving themselves with carpentry or earthworks, but willingly leave in ready-made dupes and nonorah. Residents of each species impose their own requirements. For example, big tits occupy the darkest and deep hollows and do not tolerate the slots in artificial nests. On the contrary, Mukholovki-Pestrushki, also committed to nesting in duples, do not like darkness, which is why in the practice of attracting birds received a peculiar effect of "aging nesting". Its essence is that the most advantageous muffins take up newly posted nest drawers with light inside walls, but almost not inhabit the nests that have seen many years, the walls of which were dark gray from time to time. But it is enough to bother these nestings inside, they again acquire attractiveness.

The Sparrow Department includes only 7 species. Weaving caused them to master not completely, but it did not prevent one of them, it's true, collective efforts, "make an exhibit that in the construction industry feathers there is every reason to consider the most difficult and comfortable and one of the most cumbersome structures.

Building technique

All tipped nests are a variation on one topic. It is closed from all sides a spherical or ellipse camera with a narrow input from below or on the side. Many species in the nest leads a more or less long inlet tube, which is why the whole construction becomes similar to the flask or retort. Construction technique from the facilities is very interesting. Unlike other birds, they build not lying, but hanging nests.

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First weave the basis. Acting the beak, the paws, fluttering around the desired branch, the bird manages quite tightly wrapped it with a small number of building materials. Then one of the adjacent twigs are wary, and the birds connect them with each other pair of gangnate jumpers from below and on top. The likeness of the ring is formed, which over time turns into a basket and then in the flask, in a word, in the finished housing.

Construction, only males are engaged in construction, and many of them do not distinguish between at least once inside their own constructed nests. The fact is that, without exception, construction work they are accepted from the outside, without climbing the premises. Arriving with the next strip, the male invariably occupies the same working position - on the lower jumper of the ring, the beak to the future long wall of the socket and its back to its future input. Thus, the weaving leads in the direction "on itself" and as the size of the construction increases, under its "Natius", more and more deviate back, with a striking perseverance, holding his paws for its original place. To finish the construction and invite the bride to an expectation of the apartment, he falls in an inverted position, that is, hanging back down and holding off the threshold for the threshold of the house.

The nests of the birds make it easier for the heating of eggs, provide protection for masonry, causeing birds and chicks from adverse weather conditions and predators. Building nests in birds is an extremely complex phenomenon. Birds are satisfied with the nest to postpone eggs in it and grow chicks. However, there are birds that do not suit nests, while others do not raise chicks in it, since they leave it immediately after hatching from eggs. Most birds nest for a year once, many two or more. Frame birds in wintering will not nest.