Why do wild geese fly south? It turns out to be related to migration and overwintering

Wild geese are typical migratory birds. Every autumn and winter, they fly south in flocks, a common sight in the northern sky. The fundamental reason they fly south is to follow suitable temperatures and abundant food sources. Winters in the north are cold, lakes freeze over, and vegetation withers, making it difficult for wild geese to find enough aquatic plants, tender grass and grain to sustain themselves.

Winters in the south are relatively mild, the waters do not freeze, and food is abundant, making it suitable for wild geese to rest and spend the winter. When spring arrives and temperatures rise, and the ice and snow in the north melt, wild geese will fly back one after another to their northern breeding grounds, where the space is open and natural enemies are relatively few, which is good for building nests and raising chicks. This habit of traveling back and forth between north and south with the seasons is called migration, and it is the result of long-term natural selection.

During migration, wild geese often fly in a V shape or a straight line, which allows them to save energy by using the airflow produced by the flapping wings of the individuals ahead, and the young geese and weaker individuals are mostly protected in the middle of the formation. When resting at night, the flock will also post sentries to guard against approaching natural enemies.

It should be noted that most wild geese are protected migratory birds, and catching and hunting them at will is prohibited. Today, artificially farmed geese are mostly domesticated and bred varieties, and differ from wild geese in habits and uses. Understanding why wild geese fly south not only helps us understand the living patterns of migratory birds, but also has reference value for wild goose farming and population protection.