An early start and I almost immediately located the Firecrest in the bushes alongside the riverbank. Within a few minutes the YBW had started to call as well. I used my back-up 7D mki direct to the 500mm lens with a monopod. Light was poor and I had to go as low as 1/160th second to maintain an acceptable ISO. AF was really slow and frustrating with the 7D but I managed to get a few keepers over a couple of hours.