Last Tuesday’s walk was strenuous but the result of my efforts was magical!

As I try to do around this time every year, I caught a train up to Bargoed, then trudged down to the River Rhymney, up the steep slope on the other side to Aberbargoed, then up the even steeper hill that is the former colliery spoil tip.

Why? Because this is the closest and most accessible location I know where I might find Grayling butterflies.

And, yes, as you can clearly see from the extravagance of photographs in this post, my quest was successful.

In fact, I saw more Graylings this year than in any previous year, and they were also more widely spread across the site than I have seen previously.

The national population of Graylings has plummeted in recent decades and they are now officially classified as an endangered species, so their abundance was particularly heartening to see.

It may be that this year’s warm weather suits them, though I think it is likely also to be at least one of the reasons they have dispersed more widely across the tip; the heat means plants are not producing as much nectar so the butterflies have to fly further to find food.

That did mean I was able to photograph these glorious Graylings on a variety of wildflowers and in settings other than them simply sitting on the coal spoil, which made my time spent amongst them even more special.