To call the wind 'fresh' would be an understatement on this early spring day. But the chance to head out through the marshes at Salthouse is precious whatever the weather. Boom is thinking 'swim'. Following the weeks of wet weather, the dykes and scrapes are full to the brim. I'm more focussed on the feathered inhabitants. Undeterred by the wind, a Lapwing performs its aerial ballet, whilst the shovelers, well, shovel. Boom gives me the hurry-up. He doesn't consider standing