1554 recovered Grey-headed Fly-fox (Pteropus poliocephalus) carcases collected during a heat-stress at event at Melbourne's Yarra Bend Grey-headed Flying-fox colony - about one third of those estimated to have died. The number of dead was so high there were not enough bins to place them in, and many were put into plastic bags. Red foxes found them overnight before they could be collected, and tore open some bags to feed on the remains. One half eaten in the front. Park Ranger and Grey-headed Flying-fox Project Officer Stephen Brend estimated that during this day, over 4,500 Grey-headed Flying-foxes died at the Melbourne Yarra Bend colony as temperatures exceeded 43°C. 56% being infants and a significant part of the next generation. Fairfield, Victoria, Australia. December 2019.