The extent of the Important Bird Area (IBA) is defined as all habitat suitable for chestnut-breasted whitefaces on Mount Lyndhurst Station. The habitat consists of low hills covered by gibber and shingle rock, forming a bare, stony surface dissected by numerous drainage lines. It also supports patches of low, open shrubland, mainly of low bluebush, bladder saltbush and other chenopods, with a sparse scattering of larger emu bushes and wattles. The climate is arid with hot summers and mild, dry winters. Mean maximum temperatures range from 35.5 °C in January to 17.3 °C in July. Mean minimum temperatures range from 20 °C in February to 4.1 °C in July. Mean annual rainfall is 165.6 mm.[1][2]
