The
Important Bird Area (IBA) boundaries are defined by remnant native vegetation, mainly
eucalypt open forest and woodland, within a 6 km foraging radius of non-breeding season roost sites for
black cockatoos. The IBA consists of all blocks of native vegetation greater than one hectare in
water catchment areas,
state forests,
nature reserves and private land. Part of the IBA lies within the
Serpentine National Park. The region has a
Mediterranean climate. ==Birds==