Cause in the North it can get really cold and birds don't mostly survive in the cold so they fly south were it's warmer or hotter.
Birds Fly South was created in 2001.
When the Birds Fly South was created in 1945.
When the Birds Fly South has 223 pages.
Birds do not fly all the way to the southern hemisphere, they fly to the equator.
When birds fly south for winter each year, this is known as "migration." The birds fly south to live in a warmer climate, and in the spring they fly north again when the weather changes.
Siberian crane
yes
When birds fly South for the winter it is called migration.
The main reason that birds fly south in the winter is because they can't stay in a cold place so they fly south to a warmer place during the winter.
Monarch Butterflies. They fly south for the winter like birds do.
60%
because there always going south