- An animal requires warmth for survival
- Winter means environmental temperature decreases
- Therefore, animals must move to a warmer environment in the winter

- Animals must move to a warmer environment in the winter
- Migration is when animals move themselves from a cooler climate to a warmer climate for the winter
- Hence, an example of migration is moving to a warmer climate in the winter

- An example of migration is moving to a warmer climate in the winter
- Birds fly south for the winter
- So, an example of migration is birds flying south in the winter

Hence, an example of migration is birds flying south in the winter
Question: Many birds fly south for the winter. This adaptation is called
Context: - An animal requires warmth for survival 
- Birds fly south for the winter 
- Migration is when animals move themselves from a cooler climate to a warmer climate for the winter 
- Winter means environmental temperature decreases