The other day I was installing satellite broadband at a customer's property and, as is usual, one of the first things to work out was which way's North. Often, I will have likely checked on my computer before leaving home but, occasionally, I resort to the app on my phone once on site, or even the old-school method of a proper compass. On this particular day, there was a further option. In the central lobby of the house, the floor featured a huge graphic, exactly aligned on magnetic North. Sorted! For the past few weeks, when heading east out of Stromness, I have been seeing Grey Herons on my journey. Sometimes hunting in the waters of the Loch of Stenness or, more often, flying between the loch and the shore of Hoy Sound. But the other morning, as I drove across the Brig o' Waithe, where the main road crosses the outflow of the Loch of Stenness, a large bird flying over my head was definitely not a heron. It was huge, with broad wings, a wedge-shaped tail and a massive chu...