Cuckoo Tracking Project

Cuckoo. Alan McFadyen

Help us follow Cuckoos on migration and discover why they are in decline.

We’ve lost over half the number of Cuckoos in the UK over the last 20 years. Since 2011 we’ve been satellite-tracking Cuckoos to find out why. We’ve learned lots of vital information which could help us to understand our Cuckoos -  such as how the different routes taken are linked to declines, and some of the pressures they face whilst on migration. But there is still more to discover. We now need to look more closely at how dependent they are on, and how much their migration is linked, to the drought-busting rains of the weather frontal system known as the Inter Tropical Convergence Zone (ITCZ) as they move out of the Congo rainforest and begin to head back to the UK via West Africa. Follow our Cuckoos as they move to and from Africa.

This project wouldn't have been possible without the amazing support from funders and sponsorsRead more about the project and find out how you can get involved.

We have been able to share our expertise around tracking Cuckoos with other international studies, such as the Beijing Cuckoo Project.

Skill required

  • Follow our Cuckoos on the map below - use the controls to animate or step through their movements.

Join the project

Sponsor a Cuckoo

Cuckoo movements from 23 May 2019 to 19 June 2019

View routes starting..
Cuckoo positions on
 
 
Project Lead
Email Contact:
cuckoos@bto.org

Project timeline, contributions & findings

Project timeline

  • 5/11 - First round of five Cuckoos tagged, wintering sites in the Congo identified 
  • 3/12 - Different routes discovered on return journeys
  • 2016 - First scientific paper published on on the routes of our Cuckoos

Latest News

Thomas still in Thetford Forest

- 19 Jun 2019
Thomas has been pretty faithful to the area of Thetford Forest just to the west of Mundford. He is currently in a forest block just on the southern edge of the village. In 2018 he left the UK on 14 June - when will he leave this year?

Robinson in Sherwood Forest

- 19 Jun 2019
Robinson hasn't moved far from Sherwood Forest since he arrived back this spring. He is currently in forest just to the north of Edwinstowe. In 2018 he left Sherwood Forest and the UK on 20 June - he could be on his way any day now.

Raymond in Sussex

- 19 Jun 2019
Since arriving back in the UK Raymond has been on a bit of a wander around Sussex. More recently, however, he has been spending his time on the edge of the Downs just to the north of Portslade and to the east of Steyning. In 2018 Raymond left the UK on 22 June - we could be waving him off any day now.