Buzzard

Hi all New here, just wanted advice, i have to walk home from work and on the way i go through a few miles of countryside, recently în the last months ive been getting consistently swooped by a large bird which i beleive Is a buzzard due to the sound it makes, which is like a high pitch squeel, any advice on how to get your one to leave me alone as its gotten very close and on more than one occasion ive had to duck to avoid getting hit?

Much appreciated 

Peter