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.

Our Cuckoos have now started their return journey to their breeding grounds in the UK. Follow them below as they make their way back from Africa.


Cuckoo movements from 01 May 2016 to 25 May 2017

View routes starting..
Cuckoo positions on

Latest News

Victor still on the Norfolk/Suffolk border - 23 May 2017
Victor is still ranging quite widely around King's Forest in Suffolk but also occasionally visiting Thetford Forest over the border in Norfolk. Like PJ he has also been in the vicinity of the BTO's Nunnery Lakes. The most recent locations received around lunch on 23 May showed that he was to the east of Thetford on the edge of heathland close to Roudham.
Selborne still in the New Forest - 23 May 2017
Since arriving back in the New Forest Selborne has explored it pretty thoroughly. The most recent locations recieved from his tag show that he is now spending most of his time in an area northeast of Brockenhurst and to the northwest of Furzey Lodge. He has also visited heath to the southwest of Beaulieu Road Station.
PJ still close to his tagging site - 23 May 2017
Since arriving back in the King's Forest on the Suffolk/Norfolk border, PJ has ranged quite widely in the area and has visited the BTO's Nunnery Lakes on a few occasions. For the last few days he has been frequenting the area just north of the Elveden Memorial.

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

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