In which season do migratory birds migrate in China?

Migratory birds in China mainly occur in spring and autumn. According to the relevant public information, most migratory birds migrate in spring and autumn, and migratory birds in China mainly migrate in spring and autumn. Every year, migratory birds migrate to the north when the climate gets warmer in spring and to the south when the climate gets colder in autumn, so as to get enough food and avoid bad weather conditions.