An extreme heat day in late January threatened grey-headed flying foxes in Brimbank Park, but a stronger response resulted in fewer deaths than during a previous extreme heat event earlier this year, a wildlife rescue director said. Wildlife rescue organisation Fly By Night director Tamsyn Hogarth estimated about 100 bats in Brimbank Park died on Tuesday 27 January, when temperatures soared to 45 degrees in parts of Melbourne’s west. “We still had deaths but it wasn’t to the extreme of the previous [incident],” Ms Hogarth said. Ms Hogarth said DEECA’s response on 27 January was better, and that the department provided a large water container and contractor to come out to refill tanks throughout the day. She said she would like such measures to become a permanent fixture ahead of future extreme heat days.