These look similar to common redshanks apart from during the summer when they turn almost black. There are small differences though, they tend to be slimmer, longer bill with a slight downturn at the end and the red on the bill is restricted to the lower mandible.
Shot on Brownsea last week
stan
1/1250, f8, ISO 400, 600mm
Shot on Brownsea last week
stan
1/1250, f8, ISO 400, 600mm