The Jalbarragup IBA supports at least 1% of the breeding population of the endangered Carnaby’s Black-Cockatoo and small numbers of the breeding population of the endangered Baudin’s Black-Cockatoo. The IBA boundaries are defined by native vegetation within a 10 km foraging radius of the locality of Jalbarragup in the deep south-west of Western Australia. The foraging radius is based on Western Australian Museum data for low density nests of Carnaby’s Black-Cockatoo in forest areas (T. Kirkby, Western Australian Museum, pers. comm. 2009). The IBA consists of all native vegetation greater than 1 ha on private land, water catchment areas, state forests, nature reserves and other reserves. Pasture, crops, non-native plants, weed species and orchards are excluded from the IBA. The 1 ha minimum native vegetation criterion has been determined by experts in a consultation process undertaken by the Australian Government (C. Gole pers. comm. 2009). The area has a Mediterranean climate.
The forest redtail subspecies of Red-tailed Black-Cockatoo (Calyptorhynchus banksii naso) is listed as vulnerable under the federal Environment Protection and Biodiversity Conservation Act 1999. This subspecies is likely to be a breeding resident of the IBA (T Kirkby, Western Australian Museum, pers. comm. 2009).
Non-bird biodiversity: This large IBA is likely to contain a number of other threatened flora and fauna. Details of these are available from the Department of Environment and Conservation, Threatened Species and Communities Branch.
Pressure/threats to key biodiversity
European Honeybee (feral bee) control and mitigation of illegal shooting, particularly for Baudin's Black-Cockatoo. Active prevention of fruit crop damage by Baudin’s Black-Cockatoo by permanent netting and scaring by gas guns and shooting to scare (DEC 2008).
Conservation responses/actions for key biodiversity
For a number of years, a research and monitoring project has been conducted by the Western Australian Museum to document the distribution and movements of Baudin's Black-Cockatoo in the non-breeding season and the breeding and ecology of Forest Red-tailed Cockatoo (Calyptorhynchus banksii naso). In the Jalbarragup IBA some research work in the breeding season has identified small numbers of cockatoo nests.
The IBA overlaps with five protected areas.
Private landholders (orchardists, farmers, townsite residents); nature reserves, national parks and state forests (Department of Environment and Conservation); local government; service providers (Western Power); Water Corporation.
BirdLife International (2020) Important Bird Areas factsheet: Jalbarragup. Downloaded from
http://www.birdlife.org on 25/10/2020.