Safety tip: On my property which is large, I've fed the magpies regularly and they have no issues with me (trust has been gained). However, it's a different story when they don't know you. Crazy helmet designs just seem to make them more anxious that you are a threat. An umbrella seems to work the best as they cannot see you (the threat) from behind and they wont attack from the front. Has taken 4 years to work this out sadly via trial & error, but it's about the most efficient way of not being attacked!