 Consequently, as a result of a decrease in food supply, particularly amongst the Buttongrass moorlands, the volunteers under the state program provide supplementary feeds for the endangered Orange-bellied Parrots.The other major environmental threat is the root rot fungus "Phytophthora cinnamomi", which has been found at Scotts Peak and Melaleuca.This disease particularly threatens the Buttongrass moorlands that cover a significant part of the park and provide both habitat and feeding grounds for a number of endemic species including birds and amphibians.