There have been no updates from Grove II’s tag since 6th January, so, sadly, it is increasingly likely that we have heard the last from him but there is still a glimmer of hope that he will yet reappear.
Cuckoo Tracking Project
What have the Cuckoos taught us?
When the Cuckoo Tracking Project began, we knew very little about what our breeding Cuckoos did once they left the UK for the winter months. Amost 100 tagged birds later, our new blog explores what we have learned and the questions we're still asking.
Help us follow Cuckoos on migration and discover why they are in decline.
The Cuckoo is currently Red Listed as a Bird of Conservation Concern in the UK, due to its population decline.
Since 2011 we’ve been satellite-tracking Cuckoos to find out why they are declining. 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 sponsors. Read 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
Cuckoo movements from 01 May 2022 to 23 March 2023
View routes starting..
Cuckoo positions on
Latest updates
No news from Grove II
24 Mar 2023
Ellis could be moving soon
24 Mar 2023
Ellis has spent the last month north east of Sierra Leone in Guinea. He is approximately 30km (18.5 miles) north of the city of Kissidougou. Last year he began his migration across the Sahara on 28th March, so we expect to see him make his move very soon!
JAC still in Guinea
24 Mar 2023
Since arriving in Guinea on 28 Feb JAC has flown a short distance north and is now halfway between Diassadougou and Guieredougou in eastern Guinea. He has spent approximately 20 days in this area preparing for the next leg of his northward migration. Last year he began crossing the Sahara on 7th April, so be prepared for JAC to migrate north within the next 3 weeks.
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
Contributions & findings
Support the project
You can help keep this important project going by either giving a donation, becoming a Cuckoo sponsor, or gifting a sponsorship to someone else. We greatly appreciate the support the project has received, allowing us to continue to monitor this endangered species.
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