Today I found two adder males. The first one was a pretty large individual I found a quarter past noon. Although he must have been out for a while he was pretty sluggish and I could easily get a few shots without disturbing him. He even moved and repositioned himself during the photo session!
Second individual was significantly smaller but more vividly coloured than the first. I found him later in the day and he was pretty active. I only managed to get two shots of him. The first one was okay but the second caught his tail and posterior body as he slipped into a crevice between the rocks.