Concerns are mounting for Sussex, as we haven’t received any transmissions from his tag in more than two weeks and the temperature sensor on the last transmission gave an unusually low reading. We would normally expect this to be around body temperature, since the tag is fitted to the body, so a low temperature reading normally indicates a problem.
Sussex has been in his current position within Central African Republic since 3 September, and, while he was at that point the most southerly Cuckoo, during that time most of the other tagged Cuckoos have continued on southwards, leaving him in their wake. He is the only Cuckoo currently in Central African Republic and only BB and Chance are located further north than him.
By the 31 August, Sussex had left Chad and headed south, revealing his new position in the Central African Republic. The excitement at Whortle and Patch's movements over the weekend meant this new movement was slightly overshadowed but he has actually travelled 450km (280 miles) and is now further south than Nick, making him the most southerly of all our tagged Cuckoos! Only David is also in the Central African Republic, in the very north tip, about 550km (340 miles) away from Sussex's location.
Waller, Chris, Sussex and BB are all still in Chad and sending regular transmissions. Last year Chris was the first of our tagged Cuckoos to move south of Chad, arriving in the Central African Republic by the 18 September. Not long after this the Cuckoos moved on to the Congo Rainforest.
BB, one of the Cuckoos tagged in Scotland in spring 2012 and Sussex the Cuckoo, tagged in spring 2013 are now only around 5km (3 miles) from each other within Chad – much closer than they are during their breeding season in the UK! BB moved to a location just south of Dassik, having flown 250km (155 miles) by 8 August before Sussex also headed south, travelling 230km (140 miles), to just north of Dassik and BB’s location by 10 August. They are so close together you can only see one icon unless you zoom in really close on the map!
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