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Development
Predator birds
Scavengers, or
vultures
Birds,
feeding
live prey
Daytime
predator birds
Daytime
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Owls- an order of birds of prey, including more than 420 large and medium-sized species, mainly nocturnal birds, distributed in all countries of the world. There are two families in the order: owls, or true owls, and barn owls, however, in the Sibley-Ahlquist taxonomy, all families of the order Nightjars are placed in the order.
a brief description of :
large head, large round eyes in front of the head, short, predatory beak. Hunts at night, soft plumage, silent flight, long and sharp claws, camouflage color.
Habitat
Owls are spread all over the world, from the equator to the cold northern countries, they can be found everywhere: on the seashore, in the mountains, in the desert, in the steppe, and even in cities. Most owls live in forests or wooded areas, and only a few, like the short-eared owl, prefer open areas. Some owls - for example, the little owl and the barn owl - willingly settle under the roofs and in the attics of houses. In most cases, nests are hollows of old trees, and eggs are usually laid without any bedding. Nests can also be rock crevices, holes in walls, underground burrows of various mammals, abandoned nests of other birds. Some owls, such as the great owl, may also occupy artificial owlets.
Behavior and diet
Some owls hunt during the day, such as the Russian owls - the snowy owl, the great owl and the hawk owl; some others, such as the little owl, hunt equally both during the day and at night. However, most owls are true nocturnal birds, and many of them fly freely even on completely dark nights, as can be judged by their calls. The flight of owls is completely silent and allows them to fly up to sleeping birds completely unnoticed. When hunting, owls, flying silently over the ground, from time to time emit a sharp cry, scaring off the prey with its surprise. Apparently, owls take advantage of this to notice the latter.
Vision
Owls see only in front of them, and their vision is binocular. In this they differ significantly from most birds, in particular from nightjars, whose eyes are more likely to turn backwards than forwards. Only some birds of prey - harriers, ospreys and short-toed eagle - have eyes partially directed forward. Owls notice the approach of danger from behind only if a rustling sound is heard.
Owls' vision is quite unusual. Their eyes are very large and very close to each other. The eyes of owls are completely motionless, and cannot fairly be called an “eyeball”, since they are actually tubular.
The ability of owls to detect low-intensity sounds and accurately determine the location of the prey by ear is explained by the special design of the hearing aid. First of all, their eardrum is noticeably enlarged. Thanks to this, the pressure of the sound wave transmitted by the auditory column to the relatively small area of the oval window of the inner ear is increased by almost forty times (and not eighteen, as in humans). It is also noteworthy that in owls the auditory ossicle does not rest on the center of the eardrum, as in most other birds, but is located somewhat eccentrically, and this also provides additional increased pressure.
plumage
The plumage of these birds, as a rule, is thick and soft, the tail is rectangular, and the wings are relatively large, rounded, and in those species that hunt under the forest canopy, they are short, and in those that prefer open areas or frequently fly, they are long. Compared to its body weight, the owl's wings are large, so it flies and glides without much effort and is completely silent.
The coloring of owls' plumage is usually "protective", that is, it blends with the environment, helping the bird to remain unnoticed during the daytime rest. The feathers of forest owls are usually brownish, while species living in coniferous forests have a grayish tint. Owls - inhabitants of deserts and their relatives, found on flat terrain, are distinguished by a lighter color: owls in the desert are certainly red. With the exception of fish owls, feathers also cover their feet. Due to the fact that its outer fingers are reversible, the owl grips both the perch and its prey equally firmly, and their claws are all long and sharp.
reproduction
Owls are monogamous and form permanent pairs. They do not build nests themselves. They occupy secluded places, rocky crevices, depressions and nests abandoned by large birds. They usually breed once a year, but with an abundance of food they can breed more often. Owl eggs are relatively small, always white and have a characteristic almost spherical shape. An owl usually lays 3 to 10 eggs. The eggs are incubated by females, but both parents take part in feeding the chicks. Incubation lasts about a month. Owls incubate from the first egg, so chicks of different ages often live in the nest. Parents try to feed the older chicks, which is why they are even more ahead of their younger brothers in development; in times of hunger, older ones can even eat younger chicks. The development of owlets occurs according to the chick type.
Materials used:
Yandex pictures:
https://yandex.ru/images/search?text=%D0%BA%D1%80%D1%83%D1%82%D1%8B%D0%B5%20%D1%81%D0%BE%D0 %B2%D1%8B%20%D0%BA%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B8&_= 1445169979519
Wikipedia: https://ru.wikipedia.org/wiki/%D0%A1%D0%BE%D0%B2%D0%BE%D0%BE%D0%B1%D1%80%D0%B0%D0%B7 %D0%BD%D1%8B%D0%B5
10 facts about owls:
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Falcon family
Birds of this family are recognized by a tooth on the upper beak, which corresponds to a notch on the lower beak. This is an ancient and persistent feature that has important functional significance: with the help of a prong, the falcon quickly kills the victim by tearing off its head.
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The peregrine falcon is found in all parts of the globe, but is rare everywhere. Always lives near large open spaces, since the hunting method requires space. This is one of the fastest and fastest flyers. Hunts for birds, which it kills on the fly, and less often takes prey from the ground. Before attacking, the peregrine falcon soars sharply upward, then, folding its wings, rushes down, developing a speed of up to 75 km per hour. Swooping down on prey - ducks, pigeons, partridges, waders, crows, blackbirds, starlings - he hits them with the claws of his hind fingers, sharp and crooked, like a Turkish scimitar. Sometimes the speed that a peregrine falcon develops in flight can reach 300 km per hour.
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The saker falcon nests in the island forests, occupying the nests of crows and herons. Capable of hitting a bird in flight and grabbing prey (gophers, voles) from the ground. The nests are repaired with dry branches and shoots of bushes, the tray is lined with animal hair, pieces of dry tarbagan and gopher skin. The male feeds the female during the incubation period. The chicks are fed with small birds, ground squirrels, voles, and pikas. After a month and a half, the chicks begin to fly.
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When hunting, the kestrel hangs in the air, often fluttering its wings, and looks out for prey. Having noticed a mouse or large insect, it quickly falls down. An adult kestrel eats about a dozen rodents per day. The visual acuity of the common kestrel is 2.6 times higher than that of humans. A person with such vision could read the entire vision test chart from a distance of 90 meters.
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Goshawks strictly adhere to their territory, and the nesting pair clearly demonstrates aerial pirouettes before and during nest construction. If anyone invades their territory, the couple will fiercely defend it. The individual territory of males is, as a rule, larger than that of females. Like other hawks, goshawks communicate with each other through sound signals, emitting a high-pitched, ringing squawk. Their communication is especially noticeable during nesting, when both the male and the female make the same vibrating sounds, only the female’s voice is lower and louder
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Sparrowhawk is found in the southern part of the forest zone. It lives in various forest areas, but does not fly deep into the forest, most often near open areas. A hawk's nest can be identified by the remains of its prey - small birds. Chicks are born in late June - early July. In the first half of August, the chicks are already able to fly.
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Loonies are inhabitants of open spaces. Looking out for prey, harriers fly low above the ground, slowly flapping their wings and making circular flights. It nests and rests on the ground.
Field harrier Marsh harrier
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The golden eagle is one of the most famous birds of prey of the hawk family, the largest eagle. Distributed in the northern hemisphere, where it lives mainly in the mountains, and to a lesser extent in flat open and semi-open landscapes. Avoids residential areas and is sensitive to human disturbance. Among the nomadic peoples of Central Asia, mainly the Kazakhs, Kyrgyz and Mongols, the golden eagle is used as a bird of prey for hunting corsac foxes, hares, and sometimes wolves, saigas and goitered gazelles.
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The main food of the osprey is medium-sized fish. However, in the absence or small amount of fish, the osprey feeds on small mammals (rodents - gophers, mice, etc.), frogs, and occasionally birds. The osprey fishes in a very unique way. The osprey flies at a height of 20-25 m above the reservoir. Seeing prey, it folds its wings and, stretching out its paws, rushes into the water, sometimes completely immersing itself in it. Depending on the size, it grabs fish with either two paws or one. Although the osprey also feeds on useful fish, it should not be considered harmful to fisheries, since this bird is rare and small in number. In many countries, the osprey is protected as an interesting natural monument.
Slide presentation
Slide text: Orders of birds: Diurnal raptors. Owls. Chicken. Presentation on biology for 7th grade students Author Nevmerzhitskaya E.N. Biology teacher MBOU DR "Malo-Luchenskaya secondary school No. 13"
Slide text: Lesson objectives: -show the diversity of birds of prey, features of their structure associated with their way of life; - reveal the importance of birds of prey in nature; -continue to develop skills to work with educational information; - fostering a sense of collectivism and respect for the environment; -development of creative abilities.
Slide text: DIURAL BIRDS OF PREDATOR There are 55 species in the fauna of Russia, 48 of which are nesting. The largest birds of prey in our country are the Steller's sea eagle and the black vulture (total length 115 cm, weight 8 - 10 kg, the smallest is the Amur falcon (length 27 cm, weight 150 g). All types of birds of prey are characterized by a strong, curved hooked beak. They are widespread throughout the world: they are not found only in Antarctica and on some oceanic islands. Birds of prey form family pairs. They nest usually in trees, sometimes in hollows, on rocks, on the ground. mainly vertebrate animals, but among them there are many species that hunt exclusively on insects, there are gourmets that live on a diet of only snails. Vultures and condors feed on carrion. They search for food in flight.
Slide text: golden eagle vulture kite falcon eagle harrier hawk
Slide text: The black vulture and the American condor have a wingspan of up to 3 meters. Pygmy falcons have a wingspan of 25 cm and reach a size of 17-20 cm. American Condor Black Vulture
Slide text: OWL ORDER There are 134 species in the order. Owls are distributed all over the world, except Antarctica and some oceanic islands. They are found in a wide variety of conditions - in forests, deserts, tundras, on mountains (in Tibet up to an altitude of 5000 m). These are nocturnal birds of prey. All owls have well-developed vision and hearing (they see not only at night, but also during the day). A characteristic feature of owls is their ability to perceive low-intensity sounds, which is associated with a nocturnal lifestyle and feeding on rodents, which they locate with an accuracy of 1 degree. They reproduce once a year. Nests are placed in hollows, in rock crevices, and often on the ground.
Slide text: Owl Eagle Owl Tawny Owl Scops Owl
Slide text: By destroying large numbers of mouse-like rodents, owls bring great benefits to agriculture. A tawny owl, for example, catches about a thousand mice and voles during the year, which would eat up to 500 kg of grain during this time. Therefore, owls of all species are subject to strict protection.
Slide text: ORDER GALINIA There are 19 species in the fauna of Russia, including pheasant, quail, gray partridge, white partridge, capercaillie, black grouse, and hazel grouse. Birds vary in size, have a dense build, strong legs, and are adapted for raking earth and forest litter. Birds fly fast over short distances. The plumage is short and dense. They nest on the ground. The bird is herbivorous, feeding on insects in summer. Birds often form permanent pairs. The beak is short and dense.
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Slide text: Grouse Pheasant Guinea fowl Ocellated turkey Crax Weed chickens
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Slide text: Consolidation of what has been learned The largest birds of the order Diurnal birds of prey? Why do birds of the Owl order need to be protected? Do birds of the order Galliformes form permanent pairs? What birds of the studied orders live in our area?
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Slide text: Quiz “Living Synonyms”. Often in Russian speech we use words that are synonyms, which can reflect a person’s character, appearance, features of movement, and features of conversation. For example, we say “stomp like a bear”, “this is a no brainer”, “hungry like a wolf”. And what kind of birds are people compared to when they say: Chirping like... Cooing like... Hissing like... Caw like... Pounding (saying the same thing) like... Puffed up like... Swim (go smoothly) like...
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Slide text: THANK YOU FOR YOUR ATTENTION!