Hen Harrier - I think?

Never seen one before, not the best picture and not sure if I am correct but I hope I am? This is the one I will remember even though I saw so many amazing birds today and wish I could show them all on blip but I can only pick one - it has to be this one.

Saw Razorbills, Kittiwakes, Guillemots, Lapwing, Redshank a Great Skua and so many more and I have pictures of them all. The only one that I could hear everywhere, sometimes so close that I felt I could almost touch it, but just couldn't see it - was the Corncrake!