Common Sandpiper (Tringa hypoleucos). Canon EOS 1D MkIV, 500mm F4 + 1.4X converter.
Green Sandpiper (Tringa ochropus). Equipment as above.
Greenshank (Tringa nebularia). As above with 2X converter. A consummate wader - one of my favourites.
Greenshank preening. Equipment as above.
Greenshanks: the next four images were taken with the 1.4X converter. The pair stayed together most of the time, but occasionally had a go at each other if they got too close.