In spring 2009, jointly with the Swiss Ornithological Institute, ‘geolocators’ were attached to 20 Nightingales in the UK; these tiny devices, weighing just 1g, contain a clock and light sensor which make it possible to determine where in the world they are at any given time. In June 2010 one of these birds was recaught, allowing our scientists to download the data collected over the winter months.
Scotland's winter visitors: why and how do they migrate?
From geese and swans to thrushes and warblers, discover the secrets of our winter birds' migration.
BTO Data Reports
Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.