A big tit flock, containing maybe twenty individuals, was the most notable sighting of today's river walk. In fact, I didn't actually see any of the flock, and only reached that estimate based on the calls being made and the size of the area of willow scrub from which they were emanating. A Ringlet butterfly was the first of this species I have seen locally (in over ten years watching) and reinforces my view that this has been a very good year for them.