bird migration

Some thoughts on The Migration of the Arctic Terns by George Nissen

See www.arctictern.info see the google tour You can see the tern’s tracks from their breeding grounds in Greenland in the Arctic (in yellow) to their wintering grounds in Antarctica. The white track is the averaged return flight. The terns dawdle down to their Antarctic wintering grounds looking for food etc. The Earth’s Prevailing winds. Note:…