How we track hen harriers

A key part of the Hen Harrier LIFE+ project is the satellite tagging of young birds to better understand where they go and identify where they are most at risk.

The information gained from these tags will be used for multiple benefits including:

  • Identifying and monitoring important winter roost sites
  • Identifying and monitoring potential breeding sites, including nest locations
  • Identifying causes of hen harrier mortality and highlighting instances of persecution
  • Facilitating better ecological understanding of hen harrier movements

All monitoring, ringing, and satellite tagging work is carried out under licence from the relevant UK statutory conservation agencies, in strict accordance with the law and following protocols identified in Raptors: a field guide to surveying and monitoring.

For security reasons, information on this website will be shown with a two-week delay and at low map resolution making it impossible to identify the precise locations of the birds.

The fitted satellite tag

Above: Satellite tag fitted to a young bird in 2015

Once fitted and while functioning, the satellite tag will transmit the location of the bird on a regular basis.

To help us protect these vulnerable birds, there will be some cases when we cannot update the website with the birds' movements, for example, if the satellite tag stops transmitting for any reason or the birds are nesting. Please bear with us when this happens - we will always provide updates as and when we can.