Tracking of Arctic terns Sterna paradisaea reveals longest animal migration
evidence
Miniature geolocators fitted to Arctic terns breeding in Greenland and Iceland recorded annual round-trip migrations on the order of 70,000 km between Arctic breeding grounds and Southern Ocean wintering areas, following looping routes shaped by prevailing winds rather than direct tracks. V55 VERIFICATION BASIS: not opened during production; no research channel was available. Later tracking of other populations has reported longer distances, so the figure should be presented as this study's result and not as the species maximum.
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