In our previous update, we shared with you that strong winds had carried JD 300 miles (482 km) out to sea, from the coast of Western Sahara towards the Cape Verde archipelago. Against all the odds, he made it back to the African mainland, raising hopes that this Norfolk bird's watery detour had not put an end to his journey to the Congo basin. Sadly, however, it appears that JD has perished as no further updates have been received since the last signal from his tag on 24 July, shortly after he made landfall close to the port of Nouadhibou, Mauritania’s second city. Having lost sight of land while out at sea, JD had returned the way he came. Without a ‘mental map’ to follow, he couldn’t have known that flying due East would have meant a considerably shorter journey and perhaps a better chance of survival. As it is, JD’s energy reserves appear to have been exhausted, sadly leaving him unable to find food or, perhaps, at greater risk of predation. No matter how long we are able to follow each Cuckoo, the data they provide contributes to our growing understanding of these remarkable birds and how we can work to protect them – JD and his adventures are no exception.