Why do wild geese fly south in winter?

As migratory birds, wild geese have to fly south to spend the winter because it is very cold in the north.

The wild geese fly back to the north to breed after the spring equinox every year, and fly to the south to overwinter after the autumnal equinox.

Goose love, wild geese never live alone, and there is rarely an odd number in a group of wild geese. If one dies, the other will commit suicide or die of depression.

Goose is highly adaptable and is an omnivorous waterfowl. It often inhabits waterside or swamps with dense aquatic plants, and feeds on some non-toxic and non-special smelling weeds, pastures, cereals, snails, shrimps, etc. . Sometimes they also wander in lakes and like to mate in the water. Very gregarious and good at fighting. In spring, 10 to 20 of them move together in small groups, and in winter, hundreds of them forage and roost together. When roosting, there are wild geese on alert. If something unusual is discovered, they scream loudly and flee in groups. When living in groups, the hierarchy is determined through fighting, and Wang Ziyan has priority in feeding and mating.

Goose is an excellent air traveler. In autumn and winter, they come from their hometown in Siberia in large groups

Pictures of wild geese flying and swimming

Pictures of wild geese flying and swimming (13 photos)< /p>

Fly to the south of our 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.

The wild geese maintain a strict and neat formation, that is, they line up in the shape of "people" or "one". Because they fly all day long, the power of one goose alone is not enough. They must help each other to fly fast and far. When the powerful wild goose flaps its wings and flies, the tips of its wings fan up a gust of wind, which is sent upward from below, gently lifting the little wild goose, so that the little wild 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 applies to 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, because this way the air is His resistance will be less than the first one. It also takes less effort to run.

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 find food and grass, an experienced goose always serves as a sentinel. If the lone wild goose flies south, there is a risk of being eaten by enemies.

The wild geese fly back to the north to breed after the spring equinox every year, and fly to the south to overwinter after the autumnal equinox.