The St Arnaud Box-Ironbark Region is a 481 km2 (186 sq mi) fragmented and irregularly shaped tract of land that encompasses all the box-ironbark forest and woodland remnants used as winter feeding habitat by swift parrots in the St Arnaud-Stawell region of central Victoria, south-eastern Australia.
The site lies west of the Maryborough-Dunolly Box-Ironbark Region Important Bird Area (IBA).
It includes the St Arnaud Range National Park, several nature reserves and state forests, with a few small blocks of private land.
[1] The region was identified as an Important Bird Area (IBA) because, when flowering conditions are suitable it supports up to about 75 non-breeding swift parrots.
[2] Other declining woodland birds recorded from the IBA include brown treecreepers, speckled warblers, hooded and pink robins, crested bellbirds and black honeyeaters.