Attacked myself and my 4 year old son who was on a kids bike. Followed us for a few hundred meters from tree to tree with constant attacks. Even with him off the bike walking.
There is a bad-ass magpie living near the cycle tracks leading from the Goodwill bridge. He's got me four times over the past few weeks, one resulted in a small cut on the cheek. His ";zone"; starts at the intersection of Vulture and Dock street and ends at the Goodwill bridge. Watch out for this one!