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.
Gull ID virtual training (2 sessions, Wednesdays 10am)
The training will consist of two weekly online modules of 90–100 minutes each, complemented by supported self-study exercises which will be provided after each session. The training will be run by BTO staff members Nick...