The main activity for UV this year is identifying good fishing areas in Northern England and Southern Scotland. To establish a territory, build a nest and attract a female he needs to know he can catch sufficient fish. On 23 June UV explored the Border Esk, a river running from the Solway Firth into Scotland. Here is a graphic showing his travel that day.
At lunchtime UV was at the Solway Firth estuary from where the Border Esk flows north.
UV then checked out the Border Esk as far north as a few km from Eskdalemuir. The Border Esk is probably where 37 goes to find his flounders! Small world.
At nearest UV was just 25 km from Kielder Water.
This graphic from Paul shows his 2014 ‘out’ and 2016 ‘in’ migration routes.