Chris Hewson is a researcher working at the BTO. His core interest is in the ecology and conservation of migratory birds, especially those commuting between Africa and Britain. Chris has played a pivotal role in the use of new technologies for tracking migrant birds, including the use of geolocators on Swifts and Nightingales and the deployment of satellite tags on Cuckoos. This work is revealing new information about movement patterns, stopover sites and wintering areas.