15 Feb '12, 12am

Tapuiten uit canada/alaska, gevolgd met loggers, leggen verbazingwekkende routes af. lezen!

Tapuiten uit canada/alaska, gevolgd met loggers, leggen verbazingwekkende routes af. lezen!

This wheatear fledgling has a fantastic 14,500km (9010 mile) journey to make, and then fly back again; Credit: Shutterstock When he set of for, "The Indies," little did Columbus know what had preceded him. In fact this early colonist beats him by two totally opposite routes (see the amazing feat on the map) and hundreds of thousands of years. The tiny wheatear (Oenanthe oenanthe ) ranges far and wide across the Palaearctic. Because of this complete northern distribution, it has proved impossible so far to prove where the American populations over-winter. Now it can be sung from the rooftops that Alaska to east Africa and eastern Canada to western Africa is the standard economy run for a 25g insectivorous bird with a huge appetite for trans-oceanic travel. German, English and Canadian ornithologists, led by Franz Bairlein carefully sought to provide the final proof of this ...

Full article: http://www.earthtimes.org/nature/wheatear-migration/1830/

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