Very aggressive Magpie swooping cyclists (not pedestrians, interestingly) on the Atthlon Dr cycle path near Beazley St Torrens. Repeated swoops, contact each time. It seems to concentrate its attack to the left side of the helmet, and no injury this time but it is possible. This is a very protective bird. P.S, it has been swooping for months (first attacked me 01/07/2014), but must be peaking now.