Look out for swooping magpies on the Warburton trail around Woori Yallock. I received a nice strike to the back of the head just east of where the trail crosses the Healsville-Koo Wee Rup Rd.
This is the 3rd season for this blighter. Seemed to start late July. Have not been past that area for a couple of weeks but today was swooped riding out and coming back. Not too aggressive but it is early days yet.