What are the characteristics of owls?

Question 1: What are the characteristics of owls? Owls were not all evil incarnations in ancient times. In ancient Greek mythology, there was a goddess of wisdom named Athena. It is said that her favorite bird is an owl. So the ancient Greeks worshipped the owl very much and thought it was a symbol of wisdom.

So, how do owls catch mice?

Ornithologists have long studied how owls catch mice. The owl's eyes are tubular, and some people describe it as a miniature telescope. There are extremely rich columnar cells in the retina of owl eyes. Columnar cells can sense external light signals, so owl's eyes should be able to detect extremely weak light. If the bird's eye is compared to a camera, then the eyes of most birds suitable for daytime activities are small-caliber standard lenses, and the eyes of owls are large-caliber long-focal telescope heads. Therefore, for a long time, people have always thought that owls fly and prey in the dark by vision. However, if the visual sensory system of ordinary birds is used to measure the owl, then to achieve the owl's vision, its whole brain must be composed of visual nerves!

In modern times, advanced science and technology have pushed the study of owl behavior to a new stage. Some ornithologists put Cang (a kind of owl) in a completely dark room and observed Cang's mouse catching activities with infrared photography equipment. This experiment is very clever. There is nothing in the room except some scraps of paper scattered on the ground. At the beginning of the experiment, ornithologists put a mouse into the laboratory and began to video. It is found from the video that as soon as the mouse steps on the ground, the warehouse can catch it quickly and accurately.

Further research by ornithologists found that owl's hearing is very sensitive, and hearing plays a major role in positioning in opaque dark environment. Owl's left and right ears are asymmetrical, the left ear canal is obviously wider than the right ear canal, and the eardrum of the left ear is developed. Most owls also have a cluster of ear feathers, which form human-like auricles. Owls have well-developed auditory nerves. A barn weighing only 300 grams has about 95,000 auditory nerve cells, while a crow weighing about 600 grams has only 27,000. In addition, the owl's face is covered with hard feathers, and this panel is a good sound wave collector. Owl's huge head widens the distance between its ears, which can enhance the resolution of sound waves. When an owl searches for prey in the dark, its first reaction to sound is to turn its head, just like we listen to small sounds. But owls don't really listen to their ears The function of turning the head is to make the sound waves reach the left and right ears at different times. When this time difference increases to more than 30 microseconds, the owl can accurately distinguish the direction of the sound source. Once the owl determines the location of its prey, it will attack quickly. Owl's feathers are very soft, and its wing feathers have velvet-like thick fluff, so the frequency of sound waves generated by owl when flying is less than 1 kHz, which is not felt by ordinary mammalian ears. This silent attack makes the owl's attack more "blitzkrieg". According to research, when an owl pounces on its prey, its hearing still plays a positioning role. It can constantly adjust the attack direction according to the noise generated by the movement of prey, and finally its claws are extended, killing two birds with one stone. Of course, the owl's vision and listening to the party complement each other in hunting, and it is precisely in all aspects that it adapts to the nocturnal life and becomes an efficient night hunting expert.

There are 133 kinds of owls in the world, and the barn mentioned above is just one of them. In the south of China, there is an owl that is very similar to Cang. It is grass. Grass's face looks like a monkey, so many people call it monkey-faced eagle. Grass often haunts cemeteries, its flight is erratic, and its singing is sharp and harsh, which often reminds people of ghosts wandering in cemeteries. In fact, the reason why grass haunts the cemetery is that there are a large number of wild rats here for them to prey on.

Owls, also known as owls, are commonly known as owls, because their eyes are round and big, much like cats' eyes. Owls belong to the order of nocturnal raptors, with more than 80 species of/kloc-0. There are about 26 species of owls distributed in China, all of which belong to the national second-class protected animals.

The unique feather design makes the nocturnal owl the quietest flying bird in the world, and sometimes even keeps silent to its prey. Its eyes are not born on both sides of the head like other birds, but in front. The owl's big eyes can only look forward. When it wants to look both ways, it must turn its head. The owl's neck is long and soft, and it can turn 270 degrees. Because it is night ... >>

Question 2: Simply put, what are the appearance and characteristics of owls? Feathers are fluffy and soft, claws are sharp, eyes are big and radiant, they are active at night and like to hunt mice; A symbol of bad luck

Question 3: What are the characteristics of owls? They have fluffy feathers, sharp claws, big eyes, high spirits, nocturnal activities and like to hunt mice. A symbol of bad luck

Question 4: Check, what is the influence of owl's appearance and living habits on human beings? Appearance characteristics-Owls vary in size, ranging from 90 cm in length to less than 20 cm in the east corner. Owls have a wide head, a short and thick mouth and a hooked front end. Compared with the huge eyes on the head, they are common and different from other birds. The feathers in the front of the head are arranged in a disk shape, and some species have ears. The distribution of feathers in eyes, panels and ears makes the owl's head very similar to that of a cat, so the order is commonly called owl.

Owls' ear holes are located on both sides of their heads, and their distribution and shape are asymmetric, which helps them locate the sound source accurately in the dark. Owls have large pupils and light can easily enter their eyes. Rod cells in retina (only one kind of rhodopsin, which can distinguish between light and shade, but can't distinguish between details and colors) are very rich, but there are no cone cells (which will be activated under strong light, and there are three kinds of rhodopsin, which can distinguish between details and colors), and even the eyes become cylindrical (not spherical), which is sensitive to weak light and suitable for it.

Living habits-Owls are typical forest birds, and some species inhabit grasslands, deserts, swamps, tundra, mountains, islands and other places. Usually resident birds. Most of them are active at night or dusk, hiding in tree holes, caves or dense branches and leaves during the day, but a few of them are active during the day. The food is mainly mice, but also insects, birds, lizards, fish and other animals. Everyone has the habit of spitting "food pills", which has digestive ability. Food is often swallowed whole. The indigestible bones, feathers, hair, chitin and other residues in food are integrated into pieces to form small balls, which are spit out through the esophagus and mouth. It is called food pills. Scientists can know their eating habits according to the analysis of edible pills.

Impact on human beings-Most species almost only feed on rodents, which are important beneficial birds and beneficial to agricultural production.

Question 5: Other characteristics of owls and woodpeckers: long and slender beaks, which specialize in eating insects on trees, similar to the existence of doctors. Owl: A pair of big round eyes, which move at night and eat mice. Swallows: They have black feathers, white breasts and scissors-like tails. They like to nest under the eaves, and their nests are also the most practical among birds.

Seeking adoption is a satisfactory answer.

Question 6: What are the characteristics of owls? Owls were not all evil incarnations in ancient times. In ancient Greek mythology, there was a goddess of wisdom named Athena. It is said that her favorite bird is an owl. So the ancient Greeks worshipped the owl very much and thought it was a symbol of wisdom.

So, how do owls catch mice?

Ornithologists have long studied how owls catch mice. The owl's eyes are tubular, and some people describe it as a miniature telescope. There are extremely rich columnar cells in the retina of owl eyes. Columnar cells can sense external light signals, so owl's eyes should be able to detect extremely weak light. If the bird's eye is compared to a camera, then the eyes of most birds suitable for daytime activities are small-caliber standard lenses, and the eyes of owls are large-caliber long-focal telescope heads. Therefore, for a long time, people have always thought that owls fly and prey in the dark by vision. However, if the visual sensory system of ordinary birds is used to measure the owl, then to achieve the owl's vision, its whole brain must be composed of visual nerves!

In modern times, advanced science and technology have pushed the study of owl behavior to a new stage. Some ornithologists put Cang (a kind of owl) in a completely dark room and observed Cang's mouse catching activities with infrared photography equipment. This experiment is very clever. There is nothing in the room except some scraps of paper scattered on the ground. At the beginning of the experiment, ornithologists put a mouse into the laboratory and began to video. It is found from the video that as soon as the mouse steps on the ground, the warehouse can catch it quickly and accurately.

Further research by ornithologists found that owl's hearing is very sensitive, and hearing plays a major role in positioning in opaque dark environment. Owl's left and right ears are asymmetrical, the left ear canal is obviously wider than the right ear canal, and the eardrum of the left ear is developed. Most owls also have a cluster of ear feathers, which form human-like auricles. Owls have well-developed auditory nerves. A barn weighing only 300 grams has about 95,000 auditory nerve cells, while a crow weighing about 600 grams has only 27,000. In addition, the owl's face is covered with hard feathers, and this panel is a good sound wave collector. Owl's huge head widens the distance between its ears, which can enhance the resolution of sound waves. When an owl searches for prey in the dark, its first reaction to sound is to turn its head, just like we listen to small sounds. But owls don't really listen to their ears The function of turning the head is to make the sound waves reach the left and right ears at different times. When this time difference increases to more than 30 microseconds, the owl can accurately distinguish the direction of the sound source. Once the owl determines the location of its prey, it will attack quickly. Owl's feathers are very soft, and its wing feathers have velvet-like thick fluff, so the frequency of sound waves generated by owl when flying is less than 1 kHz, which is not felt by ordinary mammalian ears. This silent attack makes the owl's attack more "blitzkrieg". According to research, when an owl pounces on its prey, its hearing still plays a positioning role. It can constantly adjust the attack direction according to the noise generated by the movement of prey, and finally its claws are extended, killing two birds with one stone. Of course, the owl's vision and listening to the party complement each other in hunting, and it is precisely in all aspects that it adapts to the nocturnal life and becomes an efficient night hunting expert.

There are 133 kinds of owls in the world, and the barn mentioned above is just one of them. In the south of China, there is an owl that is very similar to Cang. It is grass. Grass's face looks like a monkey, so many people call it monkey-faced eagle. Grass often haunts cemeteries, its flight is erratic, and its singing is sharp and harsh, which often reminds people of ghosts wandering in cemeteries. In fact, the reason why grass haunts the cemetery is that there are a large number of wild rats here for them to prey on.

Owls, also known as owls, are commonly known as owls, because their eyes are round and big, much like cats' eyes. Owls belong to the order of nocturnal raptors, with more than 80 species of/kloc-0. There are about 26 species of owls distributed in China, all of which belong to the national second-class protected animals.

The unique feather design makes the nocturnal owl the quietest flying bird in the world, and sometimes even keeps silent to its prey. Its eyes are not born on both sides of the head like other birds, but in front. The owl's big eyes can only look forward. When it wants to look both ways, it must turn its head. The owl's neck is long and soft, and it can turn 270 degrees. Because it is night ... >>

Question 7: In short, what are the appearance and characteristics of owls? Feathers are fluffy and soft, claws are sharp, eyes are big and radiant, they are active at night and like to hunt mice; A symbol of bad luck

Question 8: What are the characteristics of owls? They have fluffy feathers, sharp claws, big eyes, high spirits, nocturnal activities and like to hunt mice. A symbol of bad luck

Question 9: Other characteristics of owls and woodpeckers: long and slender beaks, which specialize in eating insects on trees, similar to the existence of doctors. Owl: A pair of big round eyes, which move at night and eat mice. Swallows: They have black feathers, white breasts and scissors-like tails. They like to nest under the eaves, and their nests are also the most practical among birds.

Seeking adoption is a satisfactory answer.

Question 10: What kind of owl are you talking about? There are differences in characteristics.

Because there are many kinds of orders, such as gray forest, long ears, carvings, small caves, flower-headed storks m ... and so on, there are hundreds of kinds, commonly known as owls.

Their common features are as follows:

For nocturnal raptors. The beak is strong and hooked. The wax film on the base of the mouth is covered with bristles. The wings have different shapes, and the fifth accessory feather is missing. The tail is short and round, and the tail feather 12, sometimes only 10. Feet are strong and powerful, often fully feathered, and the fourth toe can be turned backwards for easy climbing. The claws are big and sharp. Chickens are late bloomers. The fat glands in the tail are exposed. There are no attached feathers, and occasionally there are. Ear feathers around the ear holes help to identify sounds and locate them at night. They nest in tree holes or crevices.

Because it often makes a "harsh" sound at night, it is mistaken for an "ominous" bird by superstition. In fact, it has made meritorious deeds in catching rats and should be taken care of by residents. Such as long ears (ASIO· Autes), the face plate is very obvious, and the face looks like a cat, so it is commonly known as an owl. It is reported that 97% of the food it eats is rodents, and a nest can eat 20 ~ 30 mice every day. Homoptera, like most raptors, has the habit of "taking pills". Edible pills are indigestible bird hair, animal hair, bone fragments and so on. Collecting and analyzing these "food pills" can provide useful information for judging the feeding habits of birds and finding out the local rat species.

At present, it is divided into three families: Primitive Family, Herbaceous Family and Cicadellidae. Family of origin is extinct; There are 10 species of Gramineae in the world, and there are 3 species in China. There are 126 species all over the world, and there are 24 species in China, such as mink, humus and long ear. All the ORTHOPTERA species in China are the second-class national protected animals.

Herbaceous family (okra family)

Grass has a long and narrow skull and a face shaped like a monkey. Often called "Monkey-faced Eagle", it has long legs. There are 2 genera 12~ 17 species in Gramineae, and 2 genera and 3 species in China. Among them, there are only two species of Castanea, distributed in Africa and South Asia; There are 10~ 15 species of grasses, mostly distributed in remote islands and Australia, and others are widely distributed. Among them, Cang can be found in all continents, but its distribution in China is limited, and grass is more common in China.

Arachnidae (Arachnidae)

Owl is often called "owl" because it has a wide skull, short legs and a cat-like face. There are many kinds of Cicadellidae, with different sizes and habits. Some feed on fish, while others come out during the day. Some species have ear clusters, such as long ears, and some species have inconspicuous or missing face plates that look like eagles, such as various eagles. Cicadellidae is only represented by various eagles in Australia, among which the eagle is the largest one and the only one endemic to Australia. It is fierce and can prey on larger animals. There are about 28 genera 133 species of Cicadellidae, and there are 23 species 1 1 genus in China.

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