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    Migration

    ArticleBird AdviceWednesday 10 October 2012
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    Autumn is the typical season for birds to migrate, and this normally happens every year. The birds will flock together is a big group, sometimes flying thousands of miles to get to their destination.

     

    Why do birds migrate?

    Birds migrate to find new resources. They will leave the area where they have eaten all a lot of the food so supplies are low and used up what they need to survive when building a nest or looking after their offspring.

    The main reason for the migration is the volume of food available to them. Birds can live in freezing temperatures although this is not a want.

     

    Migration routes

    The most common migration route is moving North in the summer and returning back to the South in the summer. This is for birds that nest in the northern hemisphere so this can vary. As for the distance, there are 3 simple types: short, medium or long.

    Short distance may just be moving down a mountain due to the weather and reduced access to food.

    Medium distance is more in reference to crossing a few county or state lines to find more resources.

    Long distance is when the birds will travel much further to another country to find the best conditions for their habitats.

     

    How do birds know to migrate?

    Instinct is built into a bird as motherhood is into a woman. May things can trigger this instinct. These triggers are either the change in the length of the day, a reduction in temperature or the lack of food supplies.

     

    How the birds know that they are travelling in the right direction

    It is thought that birds use a varied number of methods to detect the way to their temporary home including, the stars, being able to detect a change in the earth's magnetic field, and by smell. After they have done this trip multiple times they are able to fly but recognition.

     

     

     

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