What are the characteristics of owl eyes?

Are owl eyes really only visible at night? Scientists tell us that this is not the case, and that if you look closely at owls and other birds, you will find that there is a big difference, that is, owls have much larger eyes than other birds, and both eyes are facing forward, and because the owl's eyes are large, it can easily sense even a little lightd, for example, even a faint starlight or moonlight will feel very bright for an owl. So the owl can see clearly during the day, but because the light is too bright during the day, the owl has to hide, and at night, it sees very clearly.

The owl has a keen eye. In the dark of night, visibility is more than a hundred times higher than that of people. Unlike other birds, owl eggs hatch one by one, and after the first egg is laid, it begins to hatch.

Owls are homeothermic animals. There is a kind of owl in Africa, the eyes can emit light like a flashlight, and the brightness can be adjusted, the local indigenous people use the owl to hunt, what is even more amazing is that the light emitted by the owl's eyes shines on the animal's eyes, and the animal is unaware. According to the natives of Africa, the light from the owl's eyes can keep the prey still.

It is not known if this is the case for owls elsewhere.

The owl's eyeballs are tube-shaped, and some have described the owl's eyes as a microscopic telescope. In the retina of owl eyes, there are extremely abundant columnar cells. Styloid cells can sense light signals from the outside world, so the owl's eyes should be able to perceive very faint light.

If we compare a bird's eye to a camera, the eyes of most birds suitable for daytime activities are small-aperture standard lenses, and the owl's eyes are large-aperture, long-focal length telescopic lenses. Therefore, for a long time, it was believed that owls flew and hunted in the dark by sight. However, if an owl is measured by the visual sensory system that ordinary birds have, then to achieve the vision of an owl, its entire brain must be composed of optic nerves!

The owl's sense of hearing is very sensitive, and in the dark environment where the fingers are not visible, the sense of hearing plays a major role in positioning. The owl's left and right ears are asymmetrical, the left ear canal is significantly wider than the right ear canal, and the left ear has a well-developed ear drum. Most owls also have a cluster of ear feathers, which form a human-like pinna.

The auditory nerve of an owl is well developed, and a barn owl weighing only 300 grams has about 10,000 auditory nerve cells, while a crow weighing about 600 grams has only 10,000 cells. In addition, the owl's face is densely packed with raw hard feathers to form a noodle plate, and this noodle plate is a good sonic collector. The owl's large head allows for a greater distance between the ears, which enhances the resolution of sound waves.

When an owl searches for prey in the dark, its first response to sound is to turn its head, just as we listen intently to a tiny noise. But the owl doesn't really listen, it turns its head to make a difference in the time it takes for sound waves to reach the left and right ears. When this time difference increases to more than 30 microseconds, the owl can accurately distinguish the orientation of the sound source.

Once the owl has judged the direction of its prey, it quickly strikes. The owl's feathers are very soft, and the wing feathers have velvety dense down, so the frequency of the sound waves produced by the owl when flying is less than 1 kHz, while the ears of the average mammal do not feel the low frequency. Such a silent sortie makes the owl's attack more "blitzkrieg" effect.

The owl's living habits are related to her food schedule, the owl's attention food is voles, and voles rest during the day and come out at night, and the owl's physiological structure is also suitable for coming out at night. The two eyes are similar to a cat's eye, and the owl has strong talons that make it easy to catch voles. It is a typical nocturnal animal.

The eyes of the head eagle are round and large, which is very distinctive. Its eye structure is different from that of ordinary animals, the light during the day is too strong, and its eyesight is particularly poor, so the owl always sleeps during the day and only comes out at night Because it has a lot of photoreceptor cells in its eyes, it can see most clearly in the weak light at night, just like humans use infrared telescopes The owl is a carnivorous bird, squirrels, voles, rabbits, frogs and snakes are its prey objects, the owl's powerful beak and claws are particularly powerful, and none of these small animals is its opponent. In addition, the owl has very large ear holes, very good hearing, it can hear very small sounds at night, its wings are big and powerful, it flies without any sound, and it is difficult to escape once the prey is discovered, with so many conditions, the owl can certainly hunt at night.

The pupils are large, and the eyes are more focused. The owl symbolizes a shrewd, capable person. At work, he is a person with strong analytical skills and strong observation skills.

Owl-type people, Bao Qingtian's iron-faced selflessness and discernment, are typical representatives of the owl group. Their first impression is that they are steady, well-behaved, responsible, organized, everything according to the system and regulations, value commitment and discipline, have a tendency to perfectionism, and make people very trusted. Owl-type people attach importance to the accuracy of every process to achieve the goal, pay attention to right and wrong, pursue excellence professionally, and easily become experts in the professional field.

They are analytical, demanding, intolerant of mistakes and disciplined, making them good partners to trust in the organization.

What do you mean?? Just look interesting.

The characteristics of the owl are as follows:

The owl's eyes are located directly in front of the face, which gives them excellent depth perception during hunting, especially in low-light environments. Interestingly, the big eyes are fixed in the owl's eye sockets and cannot be rotated at all, so the owl has to keep turning its head.

They also have a flexible neck that allows the face to turn backwards, and the range of movement of the head is 270 ° due to the special structure of the cervical vertebrae. The left and right ears are asymmetrical, the left ear.

The canal is significantly wider than the right ear canal, and the left ear has a well-developed ear drum. Most also have a cluster of ear feathers, forming a human-like pinna.

The auditory nerve is well developed. A barn owl weighing only 300 grams has about 10,000 auditory nerve cells.

However, there are only 10,000 crows weighing about 600 grams.

Habits. 1. Most owls live in trees, and some species inhabit rocks and grass.

2. The owl's diet is mainly rodents, but it also eats insects, birds, and lizards.

Fish and other animals. 3. Once the owl has judged the direction of its prey, it will quickly attack. Owl feathers are very soft, with velvety dense down on their wing feathers, so the frequency of sound waves produced by owls when flying is less than 1 kHz, compared to that of ordinary mammals.

The ear doesn't feel that low frequency.

4. Owls are colorblind.

It is also the only bird that can distinguish the blue color, except for certain birds that are accustomed to nightlife, such as owls, etc., because of the retina.

Except for the absence of cone cells and the inability to recognize color, many birds have a sense of color. Crows fly at high altitudes and need to find a place to land, and the color will help them judge the distance and shape, so they can catch the flying bugs and land gently on the branches.

Features of the owl:

The owl's eyes are round and large, and its eyes are not born on the sides of the head like other birds, but grow directly in front of it; The feathers around the eyes are radial, forming the so-called "noodle plate". The eyes do not turn in different directions, and when you want to look in different directions, you need to turn your entire head.

The owl has a keen eye. In the dark of the night, visibility.

More than a hundred times higher than a person. Unlike other birds, owl eggs hatch one by one, and after laying the first egg, hatching begins.

Species of owls

1. Short-eared owl.

The short-eared owl is named because of the short ears, the body length is 38-40 cm, it is a large owl, affectionately called "big cat" by bird friends, it is the most widely distributed owl in China, and the breeding ground is the Daxing'an Mountains in eastern Inner Mongolia.

Heilongjiang and Liaoning are winter migratory birds in other places, which can be seen in winter.

2. Long-eared owl.

The long-eared owl is named because of its long ears, with a body length of 26-40 cm, which is commonly known as the night owl.

The long-eared owl is a resident bird in a few areas of China, such as Qinghai and Xinjiang; It is a summer migratory bird in Hei, Ji, Liaoning, eastern Inner Mongolia, Hebei and other places, and a winter migratory bird in the south of Hebei and other regions.

3. Ghost owl. The ghost owl is named because of its strange cry and silent action, in fact, the face of the ghost owl is still relatively cute, the ghost owl is 23-26 cm long, it is a resident bird in Xinjiang, Gansu, Northeast China, and northern Inner Mongolia, and other regions are winter migratory birds, which can be seen in winter.

4. Grass owl. The body length is about 35 cm, the face is heart-shaped, similar to the barn owl, distributed in Jiangsu, Jiangxi and the provinces and regions south of it.

5. Small-fledged owl.

It is a small owl with a body length of about 23 cm and yellow eyes and large pupils.

Like to stare for a long time, is the owl of the most cute look, by the bird friends called "kitten", this kind of small owl belly feathers have obvious longitudinal stripes, is widely distributed in northern and western China resident birds, both urban and rural are easy to see.

1. Predation characteristics

Owl. Predators often take advantage of their ultra-low sonic frequencies to launch lightning-fast attacks on their prey. After judging the location of their prey, they will attack quickly, killing the prey.

2. Appearance characteristics

The feathers around the owl's eyes are radial, and the arrangement of the fine feathers forms a face plate, which resembles a cat, hence the name owl. Its feathers are mostly brown, scattered with fine spots, dense and fluffy, and it is silent when it flies. Females of owls are generally larger than males.

The head is large and broad, the beak is short, the sides are flat and strong, the apex is hooked, the base of the beak is not waxy, and it is mostly covered by hard feathers.

3. Life habits

The owl's habits are swift in attack. Owls have very soft feathers and velvet on their wing feathers.

Dense down, so the frequency of sound waves produced by owls when flying is less than 1 kHz, compared to the average mammal.

The ear doesn't feel that low frequency.

4. Reproduction methods

Owls are usually paired with one male and one female, but some species such as ghost owls are paired with one male and one female with multiple males. The breeding of owls is generally from March to May and June, and some species are earlier and begin to breed in January. With the exception of a few species, owls do not nest during the breeding process, but use tree holes, rock caves or other suitable nests for birds to hatch their eggs and brood.