The other day I was out riding with a mate going through a 50 zone in the suburbs. All of a sudden I feel / hear something scratching on my helmet. It stopped for a few seconds and then came back. At the next set of lights my mate told me (with a big grin on his face) that it was a magpie that took a couple of swoops at me. It was obvoiusly attracted to my helmet, my mate being a Harley rider was wearing a matt black helmet of course and wasnt disturbed.