What kind of bird is migratory bird?

Migratory birds are birds that migrate regularly to change their habitats with the change of seasons within 1 year. Migratory birds can be divided into summer migratory birds and winter migratory birds. The former refers to flying to a certain area to nest and have children in spring and summer. When the young birds grow up, it is already late autumn. They fly to warmer areas in the south for the winter, and then fly to this area to breed in the next spring. For this area, this kind of bird is called summer migratory bird.

The latter refers to wintering in a certain area in winter and flying to the north to breed in the next spring. When the young birds grow up, it's late autumn and they fly to their original place to spend the winter. For this area, this kind of bird is called winter migratory bird.

Threats facing bird migration

1, the cost of your own migration

Birds have a long migration journey, and they need to pass through many forests, grasslands, mountains, rivers, deserts, islands and beaches along the way, which requires a lot of energy. In addition, the influence of bad weather, the wrong orientation of migration direction, adaptation to the new environment and competition for resources with other migratory birds and local residents are all great risks in bird migration.

2. Destruction of habitats and border crossings

Beaches, swamps, wetlands and mangroves along the way are habitats for birds to replenish energy and recuperate during long-distance migration, helping them complete long-distance migration and realize population reproduction. However, since 1950s, large-scale reclamation of lakes and occupation of coastal beaches in eastern China have led to the disappearance of a large number of migratory birds' habitats and transit stations.

3, man-made hunting

During the migration season, hunting migratory birds has become a historical habit in some places with suitable topography and climate and relatively concentrated population density in bird migration. With the increase of market consumption, there is a process from unconscious crime to conscious crime, from multi-point concentration, from unorganized to organized.