It's estimated that up to a billion animals were killed in the recent bushfires, and the animals that have survived blazes may still be in danger, with much of their habitat wiped out.
The NSW Government said they are attempting to support endangered species like the Brush-tailed Rock Wallaby by conducting supplementary food drops in fire affected areas.
Thousands of kilograms of carrots and sweet potatoes were dropped to Brush-tailed Rock Wallaby colonies in the last week; including 1000kg to the Capertee and Wolgan valleys; 1000kg to Yengo National Park; almost 100kg of food and water in the Kangaroo Valley, with similar numbers also dropped to Jenolan, Oxley Wild Rivers and Curracubundi National Parks.
NSW Environment Minister Matt Kean said the food drops are part of a major post-fire wildlife recovery effort being designed and delivered across the State.
"The provision of supplementary food is one of the key strategies we are deploying to promote the survival and recovery of endangered species like the Brush-tailed Rock-wallaby," Mr Kean said.
"The wallabies typically survive the fire itself, but are then left stranded with limited natural food as the fire takes out the vegetation around their rocky habitat."
Mr Kean said it was the most widespread food drop they had ever done for Brush-tailed Rock-wallabies and it would help maintain those colonies and allow them to recover.
"At this stage, we expect to continue providing supplementary food to Rock-wallaby populations until sufficient natural food resources and water become available again in the landscape, during post-fire recovery," Mr Kean said.
A statement from the Minister's office said if required, the provision of supplementary food would be accompanied by intensive feral predator control.
"When we can, we are also setting up cameras to monitor the uptake of the food and the number and variety of animals there," Mr Kean said.
A National Parks and Wildlife Service spokesperson said the NSW Government provided early assistance to Brush-tailed Rock-wallabies as the endangered species exist in small numbers in limited but known locations, making aerial drops possible.
They stated each food drop operation required two to three staff over a couple of hours.