We haven't received any signals from Clement's tag since 22 February when he ventured in to Cameroon. He was the second Cuckoo to leave Congo but has since been left behind by all of the others as they moved west– he is the only one still in the eastern hemisphere! We have of course had many periods longer than this when we have not received transmissions from some of the Cuckoo’s tags but we are now concerned for Clement as we would have expected him to continue his movement westwards, towards where the other Cuckoos are, by now.
During the last couple of days PJ has crossed the desert and is on his way back to the UK. A couple of poor quality locations received from his tag late in the evening on 16 April showed that he was crossing the Mediterranean east of the Strait of Gibraltar. We will have to wait until his tag powers on again late on 18 April to see where he makes landfall.