Roy we still hope is alive but, given that it has been so long since the tag had sufficient charge to transmit, we suspect it will have degraded so that it might not be able to turn on, even if subjected to enough sunlight at some point in the future. His last location is much further north than the other four Cuckoos current positions. We would expect that he would also move south and given that the tag hasn't transmitted recently, we may assume that we are down to tracking just five Cuckoos.
Roy’s tag has not transmitted since the beginning of October. From the temperature and charge data, there doesn’t seem to be any specific cause for concern but his tag had failed to transmit for three duty cycles before the last messages were received so there may be a problem with it.
BB’s tag transmitted locations over the weekend showing that he remained in Chad. Meanwhile, we have not received any further transmissions from Roy's tag since the 6 October. Whilst we had no cause for concern for Wallace when his tag last transmitted on the 14 September, the longer the silence continues, the more we wonder why.
Sometime between 20 and 22 September, Roy moved 94km (59 miles) ESE, thereby crossing the Oubangui River and moving from CAR into the Democratic Republic of Congo (DRC). He has moved from a savannah landscape with gallery forest to a landscape dominated by forest but still with plenty of open patches and edges – based on what we saw last winter, this looks like very nice habitat for a Cuckoo.
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