Most birds migrate in the winter or fall because it is too cold for them. If they did not migrate, they could freeze! When birds migrate they fly and fly until they reach a place that is not so cold.
Birds that migrate generally do so on a North-South axis. Many birds that live on the Asian continent migrate throughout Asia. It would be unlikely, or "accidental," for birds from, for example, North America, to migrate to Asia.
like any animals or birds if the lemming did not migrate then it would probably freeze to death unless the weather was extremely hot or cold in some cases which is very rare if all the summer or winter has been the opposite weather
they would die
nothing
You would die
we would die
you would blow up
what would happen if the 8th amendment didn't exist
?
you die
we have freedom
plants will die