Transmitter detached?

Rothiemurchus continued to use his favourite wintering site but no signals were received after the night of 7th/8th November. I feel sure his transmitter has come off – which is what they are designed to do after about 5 years – he was tagged in summer 2009 – so his transmitter has been working for five and a half years.  Chris Wood, who sponsors the cost of the Argos downloads for this ospreys, is hoping to visit the wintering site this winter and will try to confirm he is still alive.  Map below shows range over three weeks and last locations in red on 7th November.nov to 7th