Endangered species that may be seen include the brush-tailed rock-wallaby ("Petrogale penicillata") which may be spotted in isolated sections of Oxley Wild Rivers National Park. Bundarra is one of only three breeding areas in New South Wales for the endangered regent honeyeater. Werrikimbe National Park is the home of the rare (native) Hastings River mouse which was considered to be extinct until it was re-discovered in 1981. The Namoi River snapping turtle ("Elseya belli") is a species of turtle found only in the upper reaches of the Namoi River, Gwydir River and Macdonald River.