Many of our birds are pretty much resident, but some regularly migrate huge distances. These maps show where birds ringed in Britain and Ireland have been found since ringing began in 1909. The darker colours on the first map show where most birds have been found. The second shows the locations of all birds, with some of the most exceptional movements highlighted.
Working together for seabirds
BTO work supports effective monitoring of our seabirds and aims to provide opportunities for a new generation of seabird surveyors.
Understanding Curlew populations in Wales
Several tracking projects combine to determine the migration routes, wintering locations and breeding season movements of Welsh Curlew.