Suzi Eszterhas / Mallard (Anas platyrhynchos) rehabilitator, Isabel Luevano, with one day old orphan duckling, International Bird Rescue, Fairfield, California

Doug Gimesy / Grey-headed flying-foxes (Pteropus poliocephalus) hang in a tree with one coming in to land. Yarra Bend Park. Fairfield, Victoria, Australia. November.

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) flying over the Yarra River, Melbourne. Watched on by wildlife rescuer Louise Bonomi. Fairfield, Victoria, Australia. March.

Doug Gimesy / Parks Victoria ranger and Grey-headed Flying-fox Project Officer Stephen Brend, releasing a Grey-headed flying-fox (Pteropus poliocephalus) back to Yarra Bend Park, which was in care. Watched on by wi...

Doug Gimesy / During an extreme heat-stress event where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-filed triage to a suffering young and Grey-headed Flying-fox (Pteropus polioce...

Doug Gimesy / Bat rescuer, carer and founder of Fly-by-night bat clinic, Tamsyn Hogarth, comforts a young rescued Grey-headed Flying-fox (Pteropus poliocephalus) that has just been rescued during a heat-stress even...

Doug Gimesy / Bat rescuer, carer and founder of Fly-by-night bat clinic, Tamsyn Hogarth, comforts a young rescued Grey-headed Flying-fox (Pteropus poliocephalus) that has just been rescued during a heat-stress even...

Doug Gimesy / During an extreme heat-stress event where temperatures exceeded 40°C, wildlife rescuer and carer Kate Chamberlain gives in-field triage to a suffering Grey-headed Flying-fox (Pteropus poliocephalu...

Doug Gimesy / During an extreme heat-stress event where temperatures exceeded 40°C at Melbourne's Yarra Bend Grey-headed Flying-fox colony, Melbourne Zoo veterinarian Sarah Frith (right) gives in-filed triage t...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox colony, where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-field triage to a suf...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox colony, where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-field triage to a suf...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 40°C, Grey-headed Flying-foxed (Pteropus poliocepha...