Because they are, for some unknown reason, "chasing" warmer, or more mild weather.
humming birds migrate the same way the other birds do. Like when it is cold in north they fly south and when it is cold in the south they fly north.
Do cranes migrate south for winter
They need to fly to be able to migrate. They migrate south to avoid cold weather in the north.
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.
They fly south for winter.
to get to warmer weather
Snow geese typically migrate south from their breeding grounds in the Arctic regions during the fall season, specifically between September and November. They can travel thousands of miles to reach their wintering grounds in more temperate areas with milder weather conditions.
Birds such as finches, humming birds, and robins go south because they cannot handle a winter. They would be unable to find food and proper shelter.
Monarch Butterflies. They fly south for the winter like birds do.
YES.BLACKBIRDS OF ALL SPECIES IN NORTHERN STATES MIGRATE.
cranes migrate because cranes like warm places. whenever it is fall or winter cranes get cold and they fly away to a warmer place
In spring, many bird species fly north as they return to their breeding grounds. This migration is driven by the availability of food and suitable nesting habitats that emerge as temperatures warm. Conversely, in the fall, these same birds typically migrate south to escape colder weather.