These guys have made contact.
Over the last three months I have been constantly attacked by a very aggressive magpie. In the last week there are now two of them, they take turns to swoop from multiple directions over a stretch of a hundred metres.
Wheeling my bicycle down the ramp to go from Bayview Rd to The Esplanade and the "walk the York " track, 3 magpies alighted on the power-lines above me. As I continued, one began swooping. I turned and left as quickly as possible with the same one continuing its attack. After riding a short distance it stopped.