Seasonalmigration is another form of escape, especially for large mammals or birds.
季节性迁徙是另一种逃避方式，特别是对大型哺乳动物或鸟类来说尤为如此。
2
The young birds live with their parents until winter, then the family makes its seasonalmigration.
雏鸟出壳后，跟随亲鸟生活，直到冬天。
3
Bird banding is one of the important means to research the seasonalmigration of birds, and is an effective method in researching the faunas, ecology and morphology of birds.