Question

causes about Siberian crane's migration

Answer 1

Migration is defined as the seasonal movement of animals from one place to another and back again.

Siberian cranes migrate because it is very cold in winters in Siberia.

So, in order to save themselves from chilling winter, to rear their young ones and for better living conditions, the Siberian cranes migrate.

Answer 2

Siberian cranes migrate every winter season to Siberia
their journey is termed as migration