'Cause they were born to be in a warm place (some birds) or cold place (some birds).
Yes they migrate seasonally
No. Koalas do not change colour with the seasons.
The correct spelling is "migrate" (to travel, especially seasonally).
Birds that migrate are called migratory birds. Birds that do no migrate are called sedentary birds. Over 4000 species of birds migrate, mostly those native to colder regions.
birds like the poo birds and sparrows are likely to migrate in wales
they do not hibernate because they are birds and birds do not hibernate but the bald eagle does migrate
lots of animals migrate and they migrate to meet their needs.
They migrate by a special formation
No, not all birds migrate. The American Cardinal, for example, does not migrate. It mostly depends on your location, for what birds do and do not migrate.
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.
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.
The likely word may be "migrate" which birds do seasonally and hunter-gatherers did to find new places to hunt. The general term for to go from one place to another is "travel."