I was swooped by a magpie that made no noise ie no clacking of beak or wing noise and so took me by complete surprise. He made contact below my helmet. Luckily I was wearing a headband under my helmet as contact was made with his beak and I suspect he would have broken the skin otherwise. A friend was also swooped by the same offending magpie and he made contact with her helmet and head numerous times. Avoid riding along this stretch of road if you can.