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 learnt lots of vital information which will to help save our Cuckoos but, there is still more to discover.

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

The Cuckoo class of 2015 have been named by schools through a competition run in partnership with EDF Energy and are listed below (Cuckoo icons with brown borders).


Cuckoo movements from 01 May 2015 to 03 September 2015

View routes starting..
Cuckoo postions on

Latest News

End of the line for Jake - 3 Sep 2015

The last signals we received from Jake back in June showed that he was still in central France. No further signals have been received since. Looking back, the tag temperature was unusually high during these tranmissions, indicating that Jake had died. We have no idea what the cause of death might have been.

Silence from Ash - 3 Sep 2015

A series of poor quality locations from Ash during early July showed that he was moving around in Croatia but we have heard nothing since. The tag data showed that he was alive when we last heard from it so it’s possible that his tag has failed.

No further signals from Cookie - 3 Sep 2015

We have received no further signals from Cookie. The data from his tag showed a low battery charge and although there is no evidence that he has died we think that this is likely. Dr Chris Hewson, lead scientist on the project visited northern Italy during the summer and found Cookie alive and well but in a location that held a very active Peregrine. Peregrines are known to take Cuckoos on migration and it is not impossible that this could have happened to Cookie.


Please contact cuckoos [at] bto [dot] org for further details.

Information on this page is only for illustrative purposes and cannot be used without our permission © British Trust for Ornithology 2015.