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 19 October 2017

View routes starting..
Cuckoo positions on

Latest News

PJ in the Congo - 19 Oct 2017
PJ has headed south and is now in the lowland forests of the Congo Basin, within Congo. He has covered around 590km (366 miles) from his previous location in the Central African Republic. 
Selborne is the most southerly Cuckoo - 19 Oct 2017
From Nigeria, Selborne has headed 1450km (900 miles)  to Gabon, across the Gulf of Guinea - possibly stopping for a brief time on the island of Bioko- and then over Equatorial Guinea. Signals received yesterday show he was in the south of Gabon, close to the Monts Birougou National Park. This new location makes him the most southerly of all the tagged Cuckoos currently. 
Boris remains in Senegal - 11 Oct 2017
Boris's tag has recently transmitted from Senegal but we are concerned that he hasn't moved south since his arrival there around the 20 September. While most of the other Cuckoos are moving east, it's a lilttle strange that Boris choose to go west in the first place. It may also be that his tag is suffering from lack of charge as there was a big gap between the last location in Mauritania and the first in Senegal. 

Get involved

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

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