The wild geese are national second-level protected animals.

The wild geese are also called wild geese, swans, and large migratory birds. They are national second-level protected animals. Wild geese are full of enthusiasm and can encourage their companions and encourage their flying companions with their calls.

It is understood that goose meat is low in fat, low in cholesterol and high in protein. More than ten pharmacopoeias, including "Qianjin Food Treatment" and "Compendium of Materia Medica", have detailed records of wild goose meat: it has a sweet and flat taste, and it enters the lungs, kidneys, and liver through its meridians, dispels wind and cold, strengthens muscles and bones, and replenishes yang energy. It is understood that the down of wild geese has good warmth retention and is very light and soft. It can be used as filling materials for pillows, cushions, clothing, bedding, etc. The harder feathers can be used to make fans and handicrafts.

The wild geese fly in a "human" or "one" shape because they fly all day long. The power of one goose alone is not enough. They must help each other to fly fast. far away. When the powerful goose flaps its wings to fly, a gust of wind blows up from the tips of its wings, sending it upward from below, gently lifting the little goose up, so that the little goose that has traveled a long distance will not fall behind.

Generally, the geese in the front are very powerful and experienced. Due to the flapping of the wings of the leading geese, they drive the airflow. If they fly in a "human" shape or a "one" shape, the geese behind It will be easy to fly and you won't have to take many breaks. During the flight of the leading goose, a low-pressure area will be formed behind it. The geese following it can use this low-pressure area to reduce air resistance when flying. Benefiting the entire group's ability to sustain flight.

The same principle also exists on the track and field. In middle and long-distance running competitions, some experienced athletes will not run first at the beginning, but will run closely behind them, because this way the air is His resistance will be less than the first one. It also takes less effort to run.

The geese fly in teams

The geese are excellent air travelers. In autumn and winter, they fly in large groups from their hometown in Siberia to the south of my country to spend the winter. The next spring, after a long journey, they return to Siberia to lay eggs and reproduce. Wild geese fly very fast, flying 68 to 90 kilometers per hour, and the long journey of thousands of kilometers takes a month or two.

During long journeys, the teams of wild geese are very tightly organized. They often line up in a herringbone or a straight line, and they keep making "quack, quack" sounds as they fly. This cry of wild geese serves as a signal to care for each other, call, take off and rest.

So, why do the geese maintain a strict and neat formation, that is, forming a "man" or "one" shape?

It turns out that this kind of team can save effort when flying. The goose at the front flaps its wings a few times to create an updraft, and the geese behind follow closely and can use this airflow to fly faster and with less effort. In this way, one by one, the wild geese naturally line up in a neat "human" or "one" shape.

In addition, the geese forming a neat herringbone or straight line are also a manifestation of the flocking instinct. Because this is helpful to defend against enemies. A flock of wild geese always has an experienced old goose as the "captain" who flies in front of the team. During the flight, the goose leading the group is physically exhausted, so it often exchanges places with other geese. Most of the young and weak birds are in the middle of the team. When stopping at the water's edge to look for food and grass, an experienced old goose always serves as a sentinel. If the lone wild goose flies south, there is a risk of being eaten by enemies.

Scientists have discovered that flying geese in a queue can reduce the air resistance of the geese behind them. This inspires athletes to follow closely behind the leader during long-distance running competitions.

The wild goose belongs to the order Aves and the family Anatidae. It is the general name for various species of the subfamily Ans, and is a large-scale swimming bird. The shape is slightly like a domestic goose, some are smaller. The mouth is wide and thick, the beak is relatively broad, and the bite edge has blunt comb-like protrusions. The male and female feathers are similar in color, mostly light grayish brown with markings. Wild geese live in groups near the water, often in groups of thousands. When sleeping at night, some geese will be on alert around the area. If they are attacked, they will sound the alarm. They feed mainly on young leaves, fine roots, and seeds, and occasionally eat farmland grains. Every year after the spring equinox, they fly back to the north to breed, and after the autumnal equinox they fly south to overwinter.

A group of wild geese are flying and arranged in the shape of "一" or "人", which is called "wild goose". Because the rows are neat, people call it "wild goose formation". The flight path of wild geese is straight. Common ones in China include swan geese, bean geese, white-fronted geese, etc. A flock of geese is composed of 6 geese, or multiples of 6 geese. A flock of geese is a family, or an aggregation of families.