Pilliga forest
A 4909 km2 area of land, including the forest and the nearby Warrumbungle National Park, has been identified by BirdLife International as an Important Bird Area (IBA). It supports groups of Painted Honeyeaters and Diamond Firetails.  Endangered Swift Parrots and Regent Honeyeaters, and near threatened Bush Stone-curlews, are sometimes seen in the forest.  Other woodland birds present in good numbers include Barking Owls, Glossy Black-Cockatoos, Grey-crowned Babblers, Speckled Warblers, Brown Treecreepers, Hooded Robins and Turquoise Parrots.