Black and White Birds

Some more photographs from my Isle of Wight trip, these were taken on the beach in Ryde.
After checking a tide timetable I aimed to get to the beach just before high tide so that the birds would be moved towards me rather than me having to chase them.

I was in luck and was able to set myself up and wait, the Sanderlings were always on the move so often it mostly just a case of settling in and waiting and they would walk past you.

They never really stopped moving so I used AI Servo and the central focussing point. I have the AF-On button on the 7D configured to stop AF so I can control the focussing when a subject stops.