Song And Dance

It was around about the moment of taking this photo that I realised there were two of them and I'm wondering whether this was part of a courtship - a soft song and a ruffling dance.  Moments later, I heard a buzzard flying high above - and then two. I came out of the trees looking for them but there was nothing. It was then that I realised these two were singing to each other the mewing call of a buzzard.  That's the second time I've been tricked.