The Lerderderg is a haven for koalas, eastern grey kangaroos, swamp wallabies and echidnas. Nocturnal animals include the greater glider, mountain brushtail possum and bent-wing bat.
Bird life abounds including Sulphur Crested Cockatoos, the majestic Wedge-tailed Eagle which can be seen from many vantage points soaring above the area. Black Cockatoos, White Knapped Honeyeaters, White Throat Tree Creepers, Crimson Rosellas, Gang – Gang Cockatoos, the Superb Lyrebird and Large Forest Owls are also to be found throughout the area.
High voltage transmission lines are known killers of wedge-tailed eagles and other raptors.