Bumper cloud of megabats wreaks havoc on Adelaide’s power network

With wingspans of up to one-metre, protected grey-headed flying foxes are causing multiple blackouts a week

Australia's largest bat is making life difficult for Adelaide residents with a heaving colony of more than 25,000 plunging households into darkness 40 times so far this year.

The protected grey-headed flying fox - a member of the megabat family - first moved into Botanic Park in the heart of the city in 2010.