How does the cold climate affect the migration of migratory birds?

Among these threats, the impact of climate change on migratory birds.

The biggest. Before winter comes, the road in bird migration is likely to be affected by cold air or heavy weather.

The attack of heavy snow. Because of the cold in the north, they first flew to the south for the winter. If the cold comes early,

Many migratory birds will lose their lives in the cold. After the snow, between heaven and earth a vast, food.

Covered with snow, birds are not only threatened by cold weather, but also unable to find enough food.

Cold and hunger killed more migratory birds. If cold air can pass quickly, migratory birds will not.

If you sacrifice too much, you will be most afraid of a large-scale continuous snowfall. A large number of migratory birds will stay for a long time

Hunger and cold on the way, a large number of deaths.