Thx Alan for the news, and great find!. For those who don’t use Facebook and therefore haven’t registered for it and cannot see the SWB FB page, here’s the details of what Alan posted [hope you don’t mind Alan]:
Red-flanked bluetail at Wern Ddu Caerphilly. Park in coed Parc-y-van car park on the Caerphilly to rudry rd. Walk back 50 yds towards Caerphilly and you will see a lane on the left. Follow this lane over the railway bridge and then right to the Warren. Turn left here and follow the lane towards Cardiff for about 200 yds. There is a notice board on the right and a bridle path on the left. Take the bridle path and the bird was either side of this path but highly mobile.