A Miscellany of Shore Birds

It was a lovely clear day on Barns Ness beach this morning and I had taken mt 200mm lens and a monopod along, hopeful of doing a bit of bird photography. However, the wind was very strong and the birds few and far between so I struggled to get a reasonable image.

However, just as we were leaving the beach, there was a bit of action and I caught a carrion crow (I think, or possibly a rook) flying along the edge of the rocky shoreline. By the time I had locked onto it I realised that it was accompanied by a herring gull. It was only when I got home and looked at the photos on the computer that I found to my surprise that I had also caught some oystercatchers nestling in the rocks. At least I assume the two smaller birds are also oystercatchers but juveniles. Maybe if you look at this LARGE someone can confirm or deny this for me.