Estimates of the extent of suitable habitat and the resulting <i>theoretical</i> number of purple-crowned fairy-wrens, and their territories, that could occur on 14 catchments surveyed within the Kimberley region.

Population size estimates were based on the predicted extent of suitable habitat within each catchment and information on group size and territory length. Present = status of purple-crowned fairy-wren distribution within the catchment; suitable habitat >0.5 HS; N = absolute population size. Lower and upper estimates are based on 95% confidence intervals of average length of territories and mean number of birds per territory.