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Changes in the day length.

This can be understood as longer days in spring for some birds.

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15y ago

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Related Questions

Birds migrate north in response to what?

WINTER.


Why do birds migrate to the North in response of?

change in temperature! i do novanet as well ^_^


Birds migrate to the north in response to?

To changes in the magnetic field and to their ancestral feeding and breeding grounds.


Birds migrate to the north in response to the?

Increasing daylight and warming temperatures, which signal the start of the breeding season and abundance of food resources.


In what direction do birds migrate for winter?

It depends entirely upon the species but MOST migratory northern hemisphere birds migrate south, and MOST migratory southern hemisphere birds migrate north. But that is a huge over-simplification.


Is there any sudden change in winter season due to migratory birds?

No. The migration of birds does not affect the seasons. Birds migrate in response to the changing seasons.


Why do birds migrate to the north?

longer days in springlonger days in spring


Where does a hummingbird migrate in the fall?

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 birds migrate to Florida?

Birds migrate to Florida for winter because up north, the winter gets very cold and the birds don't like being so cold, so they fly south for winter where its not so cold as up north.


Birds migrate to Asia?

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.


What types of birds migrate?

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.


What can birds do instead of going hibernate?

They can migrate to different regions. The birds in the Northern hemisphere go south during winter. The birds in the Southern hemisphere go north during winter. They migrate towards the equator.