Tracking Cuckoos to Africa... and back again

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.

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.

Follow our Cuckoos as they move to and from Africa.


Cuckoo movements from 23 May 2017 to 23 September 2017

View routes starting..
Cuckoo positions on

Latest News

Mr Conkers heads east - 20 Sep 2017
Mr Conkers has headed eastwards to Guinea and on to Mali.
Boris in Senegal - 20 Sep 2017
A new signal from Boris's tag on 18 September places him in Senegal roughly 600km (350 miles) south west from his last location in Mauritania.  He is just south of the Senegal River and close to the town of Dagana. 
Peckham looks to be on the move - 20 Sep 2017

A series of signals show Peckham is finally moving south. The last good signal showed him over the Ardennes Mountains in the south of Belgium but further locations of poorer quality indicate he continued on into northern France.

We've been following Peckham for a number of years and can see by the 20 September in both 2015 and 2016, Peckham was already in Africa and as far south as Chad. His journey this year has varied considerably from these!

He was one of the latest to arrive in Africa last year, with the first transmission received from Africa on 9 September. Throughout the project only three birds have arrived later than this, with two in mid-September and Lloyd, one of our Welsh birds tagged in 2012, not transmitting from Africa until 3 October that year. 

Despite arriving late last year his onward journey to reach Chad was fairly quick. Hopefully conditions will be favourable on the way south. We hope we will soon see him in Africa, all being well. 

Get involved

Find out how you can support the project, or contact us directly for further details - cuckoos [at]

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