Autumn is approaching in the north. That means massive bird - TopicsExpress



          

Autumn is approaching in the north. That means massive bird migrations will soon begin. Its actually food availability that drives the birds to migrate. As snow and ice covers the ground up in the far north, species like geese need to travel south. Insectivorous species travel south to ensure they can find the insects they need to survive. Millions of birds travel in the Autumn and again in the Spring. Simply awesome when you think about that.
Posted on: Thu, 19 Sep 2013 12:15:56 +0000

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