Seagull

This past weekend we were out and seen some seals in the water. Of course I didn't have my camera with me and by the time we got back out with it they had gone. So instead I got a couple of photos of a seagull. I must look bad because I can't get birds to look in my direction when I have a camera. Is there a type of whistle or gesture I can use to get them to look back at me?

I'm getting better at the manual focus.