Indy in the midst of crossing the Sahara! - 20 Aug 2012

At the time of writing (early afternoon, Monday 20th August) Indy is in the midst of his desert crossing. Over the preceding ten hours, we have received a series of locations that tracked his progress as he moved almost due south from Tunisia into eastern Algeria. Prior to today, we last heard from his tag on 15th August, when he was still in northern Italy. We hope Indy is fully fuelled and that, when his tag starts transmitting again (due Wednesday afternoon), he will be in hospitable country on the south side of the Sahara. 

No change from Iolo, Lloyd and Indy - 15 Aug 2012

No further transmissions have been received from Iolo in Libya or Lloyd in Italy since the 9 August. Indy also remains in northern Italy and we last heard from him on the 13 August. 

After a 3,000km round trip, Indy returns to base! - 28 Jul 2012

Having had the opportunity to scrutinise the data from the past few days, we can confirm that Indy does indeed appear to have been over the Mediterranean Sea, south of Sicily and only 154km (95 miles) from the coast of Libya, early in the morning of Monday 23 July.  Locations received in the first few hours after dawn suggest that he was heading ENE and then due N – back towards Italy – at that time. We know Indy would have encountered a strong headwind if he was originally heading south at this time, so he may turned north in reaction to this when finding himself over the sea and out of sight of land at dawn, presumably having assessed his body fuel reserves as being inadequate. However, we can’t rule out the possibility he may have been returning north having previously made landfall in Libya or Tunisia. Certainly at this time of year there will be few re-fuelling opportunities in North Africa east of the Atlas Mountains.

Remarkably, Indy then continued northwards and was approximately 110km (67 miles) NW of Rome by the evening of Wednesday 25 July. Yesterday evening (27 July) we received new locations for Indy which placed him back in the Po watershed, 16km (10 miles) north of Alessandria, exactly where he first pitched up almost four weeks ago and where he had been last present nine days previously on 18 July! During this period he has made a round trip in excess of 3,000km (1864 miles) which took him almost to Africa before returning north to Italy and right back to his starting location near Alessandria.
 
As noted in previous blogs, we have seen several examples of round trips by Cuckoos but all previous ones have been much shorter than this one. In most cases, we think this has occurred when a Cuckoo has failed to find suitable foraging locations after moving on to a new area. We assume Indy had completed the preparations for his desert crossing before moving south from the Po watershed. We can only assume that Indy’s fuel reserves were inadequate for a successful desert crossing (possibly partly due to the headwind he may have encountered) so he has returned to the area he had been fuelling in, even though it was 900 miles back to the north, because he was not aware of suitable areas further south. Certainly we expect that, south of the Po watershed, all areas will be very dry at this time of year and the favourite food of Cuckoos – caterpillars – will be very scarce.
Confusing signals from Indy - 27 Jul 2012

Over the past few days we have received a confusing series of locations for Indy, which are difficult to make sense of because the large potential errors associated with them.  Having received locations on Monday 23 July suggesting that Indy was over the Mediterranean, south-east of Sicily, we then received locations for him on Wednesday 25 July that suggested he was on the west coast of Italy, northwest of Rome. It is not clear whether Indy has really flown south and then re-traced his steps but we should be able to find out later today when his tag starts transmitting again.

Indy making a bid for Africa - 23 Jul 2012

Having spent most of July in northern Italy, Indy is on the move. Several poor locations received this morning indicate that he is over the Mediterranean Sea, 240km (140 miles) south east of the southern tip of Sicily.

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