What Nardoo Hills Reserves protect
Animals: Hooded Robin (threatened in Victoria), Diamond Firetail (threatened in Victoria), Lace Monitor (endangered in Victoria), Fat-tailed Dunnart, Chocolate Wattled Bat, Brown Treecreeper, Crested Bellbird (threatened in Victoria), Crested Shrike-tit.
Plants: Yellow Box, Drooping Sheoak, Creamy Candles, Buloke, Northern Golden Moths Orchid (threatened in Victoria), Southern Swainson Pea, Robust Greenhood Orchid (nationally critically endangered).
Vegetation communities: Plains grassy woodland (endangered), Hillcrest herb-rich woodland, Metamorphic slopes shrubby woodland, Box-ironbark forest, Broombush mallee.