Three years ago, Ilse Heidegger battled bushfires with a leaf blower on her cattle property at Woolooga, in South-East Queensland. "The main dam was overflowing, there were rivers of water everywhere" Ms Heidegger said. "I don't really name cows but she's of course named Mermaid," Ms Heidegger said. "Our hearts go out to all those farmers who have lost 20 …