Some years ago we used to have to regularly ride past a stand of trees with 2 very territorial hawks nesting in it. They'd dive-bomb cyclists and pedestrians going past.
My husband remembered stories about people in Africa or maybe India who'd put masks on the backs of their heads when walking through jungles where large carnivorous cats lived. The idea was, the lion/tiger didn't know which side of the native was the front and which was the back and so wouldn't pounce. We drew simple faces on circles of paper about 8" diameter and taped them to the back of our helmets. It seemed to work, the hawks never got as close again.