Spent yesterday afternoon on a north Norfolk Heath. Having visited on three previous occasions this year without success, I was delighted to find a pair of Dartford Warbler, nest building. Not unusually, they were in the company of a male Stonechat. A little further along the track were a pair of Woodlark. Across the road, at the base of a sunny bank, we were treated to a mesmerising display of basking Adders. The milky cast to their eyes being an indication, apparently, that they are about to slough their skins.