They attack from behind, swoop from the sky and can single out victims for repeated bombardments over successive years.

Welcome to magpie breeding season, which causes panic and fear during spring across Australia.

So far this year, according to online mapping site Magpie Alert!, there have been 485 attacks nationally and 60 injuries.

NSW is the second-worst state and now we can reveal the location of Sydney's most active bird, thanks to Magpie Alert!