L’orientation chez les oiseaux

The birds ringing has allowed to determine the wintering areas of numerous migrants. But there is still an enigma : How do birds manage to find their way?
Thanks to numerous experiments and multiple and observations, we now understand that they use the positions of the sun or the stars as marks. Two Flash animations explain to you how a bird manages to return on its breeding territory by correcting the longitude and the latitude, thanks to the comparison of the remembered and the real positions of the sun.