This Topic has been set up to follow the Spring 2012 migration, and summer activities, of satellite tracked ospreys, excluding Rothes and Tore from Loch Garten, who are followed on this thread.
It replaces this earlier thread, Satellite Tracked Ospreys (non-LG) Aug 2011 - Feb 2012.
Unknown said: Latest position for Leri: http://www.dyfiospreyproject.com/blog/2012/06/happy-birthday-leri
Latest position for Leri:
http://www.dyfiospreyproject.com/blog/2012/06/happy-birthday-leri
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It is a very strange situation. The only thing for definite is that it is a very confusing situation.
Tiger Signature
I think I must agree with Tiger - "A very strange situation" - We left this in a very confused state in October 2011 and return to it in a similar confused state.
Dyfi have presented some interesting theories but lets hope that we get data now every four days and maybe then can try and come up with some ideas.
Late October before signals were lost I understood that Google Earth GPS Waypoint information was showing movement albeit only a few hundred meters or so at a speed of 3 to 4 MPH in contradiction to the tracker which was generating the same number indicating the tracker had not moved.
For those who fully understand this information and that rules me out I ask a question - Are we now getting the same confusion between Google Earth Waypoint Information and the random numbers that the tracker generates for each movement.
I am rather surprised to find a young Osprey in exactly the same area we left her in October and am a little suspicious over the entire matter.
If we continue to receive strong data it may be a case to send out Frederic once more. At last visit he only had last known points to follow.
Tiger, agreed it doesn't appear to fit any lone logical explanation. It certainly doesn't appear to be following the patterns of a live Osprey. But then again it doesn't follow any pattern that you would expect were the worst to have happened. You wouldn't expect movement had Leri been predated; had it been at the hands of a human (a scenario some have suggested for young Ospreys) then again you would either expect no movement or a precise movement in one direction soon after killing the Osprey to "take the body home.
I did wonder if the tracker was being carried, maybe as a Trophy/badge of honour, but humans tend to have precise paths of movement, home, garden, watering hole etc. The movements here appear more like a batting chart after a cricketer has scored a century!!! I suspect they're far too random for Human movement.
The only solution I can suggest if that the transmitter was lying face down, somehow it has been disturbed and the solar panel has been able to charge, Keith's suggestion is then correct that there has been some corruption/confusion with the data & the tracker is actually stationary.
Unknown said:The only solution I can suggest if that the transmitter was lying face down, somehow it has been disturbed and the solar panel has been able to charge, Keith's suggestion is then correct that there has been some corruption/confusion with the data & the tracker is actually stationary
Yes I agree that there is corruption of the data. Remember that the activity has been showing as zero since last autumn. How you can have zero activity and activity at the same time does not make any sense.
I think that the tracker is bust from an electronic point of view.
I know zilch about these things but agree that the info we are getting seems to make no sense at all. I am therefore going with the corrupt data/faulty transmitter theory.
ChloeB & Tiger's Osprey Data
EINION : Latest position : No change:
DULAS : Latest position : No Change:
Hope the weird data from Leri's transmitter just means its faulty and she is OK
Einion and Dulas seem to have found themmselves some good spots Hope they will be able to keep them when the adults return
B&B re Nimrod
The aerial to Nimrod's transmitter broke last year. Roy Dennis saw him fishing after transmissions ceased. He had been late returning and did not breed. In April this year RD blogged that he had not seen Nimrod at his old nest but he could have been out fishing, settled at another nest with a new mate or else has failed to retrun this year. So we don't know his current status but do know he survived the failure of his transmitter.
Hilary J
Hilary thank you very much for your reply and there is hope as his nest was also destroyed with the bad weather, so he could be about and lets hope so :)
Update on Rothiemurchus here. He's spent the last week on Tayside and ranging around Perthshire.