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On bird migration...
Posted by gardenninja | March 12, 2010 2:52pm | Viewed 1146 times | 1 replies | Last replied by MariaBBB on March 14, 2010 12:58am
Will feeding birds stop their migration?
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March 14, 2010 12:58am |
A bird’s migratory urge is primarily triggered by day length (photoperiod), and even an abundance of foods at your feeders will not make a bird resist that urge. |
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