There were a few tussocks of grass poking just above the surface of the water. On one of these was a Red-kneed Dotterel, photograph one. It stayed perfectly still while I was photographing the Black Swans. Even as I approached closer it remained on its small island. At some stage it must have decided I was close enough, as it flew to the other side of the pond. There was already a dotterel there but the new arrival did not interfere with the existing bird. Photographs two to four show the newly arrived bird moving northward along the side of the pond. You can see the mud on its legs where it has been walking.