What do you think of pigeons' noses?

The advantages and disadvantages of the nose are gradually realized from practice. I remember that when I was a child, most pigeons were hybrid ornamental pigeons and local pigeons. Ornamental pigeons, like two black nose tumors, are pea-shaped, and a small part of the tip of the nose is exposed. It is almost impossible to see that it is the nose or the pigeon's mouth. The healthy black nose is white as a whole, and most of those dyed noses are unhealthy pigeons and newly hatched pigeons. The nose of a pigeon is much smaller than that of an ornamental pigeon. It's like a white bean split in half and buckled at the root of a slender peck. Nasal cavity and nasal cavity tumor are separate. According to the current statement, it is a broken nose, which is half white and half black. Although I didn't know pigeons at that time, I still like ornamental pigeons and local pigeons with big nose tumors, because these pigeons with big noses fly farther and farther than those with small noses. Later, pigeons with big noses became popular, commonly known as foreign pigeons, dog-headed pigeons and short-headed pigeons. According to the present statement, this kind of pigeon belongs to both ornamental homing pigeons. Pigeon rhinoma is wide and convex, walnut-shaped, and the eyelids are as thick and wrinkled as rhinoma. As for the hook head, it is famous for its long beak and large nose tumor, and the short head may be a variant of the hook head. The noses of these two kinds of pigeons are similar to those of modern homing pigeons, and they all have a common feature, that is, the necks are one or two wide and very long from the chin. Some hook-headed pigeons and short-headed pigeons can also fly more than 300 kilometers. This kind of pigeon is a short-distance pigeon that can't be raised well in a short distance and can't be raised back in a long distance. Because of its large size, its flying speed is far less than that of homing pigeons. In the early 1980s, the author began to raise homing pigeons. Over time, I found that pigeons of different breeds and sizes have different nose shapes. For example, the nose of Jensen pigeon is generally V-shaped, neither too big nor too small, belonging to medium-sized and older pigeons, with slightly curled nose roots. Yang Ateng's pigeon nose is mostly almond-shaped and varies in size. In addition, homing pigeons have different heads and noses. For example, the nose shape of flat-headed pigeons is mostly small "V"; Square-headed pigeons have a wide "V" shape. With the increase of age, the nasal tumor will increase and the nasal root will curl. Round-headed pigeon, nose tumor is big "V" shape and wide, but nose tumor does not turn big; The nose of a straight-headed pigeon is a narrow "V" shape with a slightly curled nose root. Pigeons with protruding heads have short "V" noses, which are wider and have shorter nasal cavities. ? Pigeons' noses are almond-shaped, generally not completely white from the tip of the nose to the root of the nose, and the nasal cavity is medium. According to the theory of olfactory navigation, the more developed pigeon rhinoma is, the more sensitive its sense of smell is. Researchers of magnetic compass theory also believe that the function of rhinoma (also called wax film) of homing pigeons is to receive the wave of magnetic field (refers to navigation) and transmit it to the brain through the nose for data processing. According to the above two theories, the bigger the nose, the better. However, from the practice of racing, this is not the case. Judging from the famous pigeons at home and abroad, none of them has a big nose tumor. Most of them are small and medium-sized From this point of view, excellent homing pigeon noses should be distinguished according to different breeds. In a word, no matter which strain of pigeon is, according to the requirements of modern racing pigeons, there should be a common standard, no matter whether its nasal tumor is a big "V" or a small "V" or a big almond or a small almond, it must meet such a requirement, that is, the nasal tumor must grow compact, the nose shape should be flat, the nose root should be tight, the whole nose should grow closely, and the nose root should be as long as possible. It is also required that the tip of the nose to the root of the nose must be all white or pink, which proves that the physical fitness of the homing pigeon is in the healthiest state at this time. Those noses that are not all white, commonly known as broken noses, will not participate in the competition until they are all white. In addition to the nasal root, the nasal cavity is also very particular as an important breathing channel for pigeons. The outer mouth of the nasal cavity is a pair of nostrils, located at the base of the beak. The nasal cavity is generally short and narrow, and returns to the throat through the nostrils. The nasal gland is located in the eye frame, and the drainage tube is opened in the middle nasal passage, which can secrete water samples containing sodium chloride and maintain water balance. Healthy pigeons don't open their mouths when they breathe. It sucks air through the nostrils, enters the soft palate and trachea, then passes through the branches of trachea and reaches the lungs through the bronchus. Therefore, the advantages and disadvantages of nasal cavity mainly depend on appearance, long nostrils, large nasal cavity and great ventilation. To sum up, the shape, advantages and disadvantages of pigeon nose, as well as the function and function of pigeon nose, should be further explored and improved in practice as a pigeon breeder. Since the reform and opening up, China has introduced a large number of excellent foreign pigeon species, and the standard of pigeon nose has developed to small, medium, long, narrow and thin nose. The center of the upper part of the nose is high, and the outline is convex, which is not as good as the center collapsing to the corner of the mouth, because this nose shape can discharge the exhaled airflow backwards and downwards, which is conducive to flying at high altitude. Of course, any theory must be proved by practice to judge whether it is correct or not. The advantages and disadvantages of the nose shape mentioned above are applicable in some places in China, with a vast territory and abundant resources, but they may not be applicable in some places. Because as a homing pigeon itself, its appearance structure will change after living in different regional climates for several generations. For example, excellent foreign homing pigeons in the western plateau have small nose tumors and thin feathers, which will become bigger and thicker after living in the western plateau for several generations, which is the physiological need of homing pigeons due to environmental changes. Therefore, when we identify the nose of homing pigeons, we should look at the local actual situation and not blindly copy it. Otherwise, carrier pigeons can't be called good pigeons, no matter how good their noses are, and they can't adapt to the local environment and climate. Pigeons should attach great importance to this. The above is just my personal research experience. If there is anything wrong, please ask the experts to correct me. It took me ten years to realize the advantages and disadvantages of pigeon nose. I remember that when I was a child, most pigeons were hybrid ornamental pigeons and local pigeons. Ornamental pigeons, like two black nose tumors, are pea-shaped, and a small part of the tip of the nose is exposed. It is almost impossible to see that it is the nose or the pigeon's mouth. The healthy black nose is white as a whole, and most of those dyed noses are unhealthy pigeons and newly hatched pigeons. The nose of a pigeon is much smaller than that of an ornamental pigeon. It's like a white bean split in half and buckled at the root of a slender peck. Nasal cavity and nasal cavity tumor are separate. According to the current statement, it is a broken nose, which is half white and half black. Although I didn't know pigeons at that time, I still like ornamental pigeons and local pigeons with big nose tumors, because these pigeons with big noses fly farther and farther than those with small noses. Later, pigeons with big noses became popular, commonly known as foreign pigeons, dog-headed pigeons and short-headed pigeons. According to the present statement, this kind of pigeon belongs to both ornamental homing pigeons. Pigeon rhinoma is wide and convex, walnut-shaped, and the eyelids are as thick and wrinkled as rhinoma. As for the hook head, it is famous for its long beak and large nose tumor, and the short head may be a variant of the hook head. The noses of these two kinds of pigeons are similar to those of modern homing pigeons, and they all have a common feature, that is, the necks are one or two wide and very long from the chin. Some hook-headed pigeons and short-headed pigeons can also fly more than 300 kilometers. This kind of pigeon is a short-distance pigeon that can't be raised well in a short distance and can't be raised back in a long distance. Because of its large size, its flying speed is far less than that of homing pigeons. In the early 1980s, the author began to raise homing pigeons. Over time, I found that pigeons of different breeds and sizes have different nose shapes. For example, the nose of Jensen pigeon is generally V-shaped, neither too big nor too small, belonging to medium-sized and older pigeons, with slightly curled nose roots. Yang Ateng's pigeon nose is mostly almond-shaped and varies in size. In addition, homing pigeons have different heads and noses. For example, the nose shape of flat-headed pigeons is mostly small "V"; Square-headed pigeons have a wide "V" shape. With the increase of age, the nasal tumor will increase and the nasal root will curl. Round-headed pigeon, nose tumor is big "V" shape and wide, but nose tumor does not turn big; The nose of a straight-headed pigeon is a narrow "V" shape with a slightly curled nose root. Pigeons with protruding heads have short "V" noses, which are wider and have shorter nasal cavities. ? Pigeons' noses are almond-shaped, generally not completely white from the tip of the nose to the root of the nose, and the nasal cavity is medium. According to the theory of olfactory navigation, the more developed pigeon rhinoma is, the more sensitive its sense of smell is. Researchers of magnetic compass theory also believe that the function of rhinoma (also called wax film) of homing pigeons is to receive the wave of magnetic field (refers to navigation) and transmit it to the brain through the nose for data processing. According to the above two theories, the bigger the nose, the better. However, from the practice of racing, this is not the case. Judging from the famous pigeons at home and abroad, none of them has a big nose tumor. Most of them are small and medium-sized From this point of view, excellent homing pigeon noses should be distinguished according to different breeds. In a word, no matter which strain of pigeon is, according to the requirements of modern racing pigeons, there should be a common standard, no matter whether its nasal tumor is a big "V" or a small "V" or a big almond or a small almond, it must meet such a requirement, that is, the nasal tumor must grow compact, the nose shape should be flat, the nose root should be tight, the whole nose should grow closely, and the nose root should be as long as possible. It is also required that the tip of the nose to the root of the nose must be all white or pink, which proves that the physical fitness of the homing pigeon is in the healthiest state at this time. Those noses that are not all white, commonly known as broken noses, will not participate in the competition until they are all white. In addition to the nasal root, the nasal cavity is also very particular as an important breathing channel for pigeons. The outer mouth of the nasal cavity is a pair of nostrils, located at the base of the beak. The nasal cavity is generally short and narrow, and returns to the throat through the nostrils. The nasal gland is located in the eye frame, and the drainage tube is opened in the middle nasal passage, which can secrete water samples containing sodium chloride and maintain water balance. Healthy pigeons don't open their mouths when they breathe. It sucks air through the nostrils, enters the soft palate and trachea, then passes through the branches of trachea and reaches the lungs through the bronchus. Therefore, the advantages and disadvantages of nasal cavity mainly depend on appearance, long nostrils, large nasal cavity and great ventilation. To sum up, the shape, advantages and disadvantages of pigeon nose, as well as the function and function of pigeon nose, should be further explored and improved in practice as a pigeon breeder. Since the reform and opening up, China has introduced a large number of excellent foreign pigeon species, and the standard of pigeon nose has developed to small, medium, long, narrow and thin nose. The center of the upper part of the nose is high, and the outline is convex, which is not as good as the center collapsing to the corner of the mouth, because this nose shape can discharge the exhaled airflow backwards and downwards, which is conducive to flying at high altitude. Of course, any theory must be proved by practice to judge whether it is correct or not. The advantages and disadvantages of the nose shape mentioned above are applicable in some places in China, with a vast territory and abundant resources, but they may not be applicable in some places. Because as a homing pigeon itself, its appearance structure will change after living in different regional climates for several generations. For example, excellent foreign homing pigeons in the western plateau have small nose tumors and thin feathers, which will become bigger and thicker after living in the western plateau for several generations, which is the physiological need of homing pigeons due to environmental changes. Therefore, when we identify the nose of homing pigeons, we should look at the local actual situation and not blindly copy it. Otherwise, carrier pigeons can't be called good pigeons, no matter how good their noses are, and they can't adapt to the local environment and climate. Pigeons should attach great importance to this. The above is just my personal research experience. Please correct me if there are any mistakes.