I came across an interesting status update on facebook today. No seriously!!
The BTO rung some Greylag goslings on Orkney on 13th July 2008. Two birds turned up in December 08 in Suffolk and then a day later at Buckenham Marshes in Norfolk. In April the two birds were still together but back in Orkney.
This winter they are back at Buckenham but this time with two birds rung on Orkney in July 09.
Now I always think of Greylags as being sedentary birds and I suppose most birders overlook them in favour of more colourful characters like Pink Footed Geese. Shows what an interesting life common birds have eh.