How Many?

I was coming back from the village along the shore this lunchtime. The tide was in, so I thought I would get a couple of scenic views of the Beauly Firth, which I did. Then I spotted what appeared to be a Curlew (Again, sorry!)some distance away. Using the Telephoto fully extended I took a couple of shots then came home. Upon bringing the photos up on the PC, I noticed it wasn't only a Curlew and rocks and sea debris, but a Curlew and other waders and a Seagull. I was amazed how many birds there are in this shot. I must admit, they are well camourflaged. So how many birds are there?