In 2003 91Èȱ¬ Radio 4's Natural History Unit joined forces with the to discover more about the behaviour of some of our favourite winter visitors.
This is the website archive of that unique project.
Six swans from Arctic Russia were satellite tagged to track their return to Britain. The Today Programme followed their journey, special feature programmes revealed the science of migration and The Living World - Coming 91Èȱ¬ visited the WWT's reserve at Welney - one of the potential landing sites.