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 10 May 2018 to 19 June 2018

View routes starting..
Cuckoo positions on

Latest News

Victor has left - 20 Jun 2018
Victor is in France, having arrived late evening on 17 June. He is using the same area of woodland close to Chateauroux, that Lambert used on his way south.
Trailblazing Thomas - 20 Jun 2018
For a short while it seemed that Thomas might be overtaken by Lambert but this wasn't to be, Thomas is still currently our most southerly Cuckoo, having moved 222km (138 miles) further south. He is on the Mediterranean coast close to Narbonne.
Sylvester moves to the Fens - 20 Jun 2018
Sylvester was tagged in Thetford Forest on 3 June. A few days later he left the forest and has spent most of his time since then in the Fens between Littleport, Feltwell and Southery.

Get involved

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

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