Needing to stock up with potting compost, I nipped off down to Caerphilly garden centre, getting there at ten and finding they don't open until ten thirty on Sundays. I could have waited there, but decided to go to the nearby Nantgarw tip, to look for the larval mines of a micro moth (Trifulcata immundella) on Broom. As expected, there was Broom on the tip and I started searching for the mines, all thewhile listening for birds.
A Raven was calling constantly and always somewhere overhead, while there were at least three Chiff Chaffs singing, plus a distant Blackcap. As I searched on, I thought I heard a Willow Warbler in the distance, but you know how it is at this time of year, when you are hoping to find your first of the season; even Robins can sound a bit like them, with a bit of wishful thinking.
After a few more minutes, I heard it again, only much closer and there was no mistaking it this time, so I headed off in its direction, eventually getting fairly distant naked eye views (I left my bins in the house) of it as it flitted through a small hawthorn, then flew off north, never to be heard again by me.
I didn't find the moth, but on my way back to the car, I found this Green Shieldbug, still in its dark winter colours.