Does wolf whistling count as sexual harassment?

My neighbour is a really unpleasant and a little bit twisted individual. I would like to point out I am male he is male. I am in my early 20's he is in his 40's I presume. He does not like my family we have had various disputes over vehicles, dogs and other issues relating to my family. His family which is his two parents are also hostile. On the 23rd he had a dispute with my mum over him blocking our access out of the drive. He ended up swearing in front of another neighbour at my mum. Their is a long and nasty 12 year history between our families. Today I went to empty the bins and he saw me empty my recycling in the blue bin and wolf whistled at me. I then went out to our kennel where we keep my dads working dogs and he made a "Duh" sound at me implying I am thick despite the fact I am doing a two year HND in Animal Management. Does wolf whistling count as harassment that is what I am wanting to know. It may even constitute as sexual harassment. I live in the UK and would appreciate advice.

We have had it with these neighbours and have even had police advice.