Lake Bindegolly

Lake Bindegolly National Park is located in southwestern Queensland near Thargomindah, protecting a remarkable system of salt lakes that are internationally significant as habitat for migratory shorebirds and nomadic waterbirds. The lakes, which fill intermittently following rare rainfall events, support extraordinary concentrations of banded stilts, red-necked stints, and other migratory species that travel from as far as Siberia to access the resources of inland Australian salt lakes. The park is listed as a Ramsar wetland of international importance, recognising its global significance for waterbird conservation.

Lake Bindegolly National Park is internationally significant for its role as a migratory shorebird staging site. When the lakes fill following rainfall, banded stilts arrive in enormous numbers, sometimes exceeding 100,000 birds, to breed explosively in the favourable conditions. Red-necked stints and other Palearctic migratory shorebirds use the lakes as a critical staging site on their journey to and from Siberian breeding grounds. The saline lake ecosystems support brine shrimp and other aquatic invertebrates that provide food for the enormous waterbird concentrations. Red kangaroos and emus graze the surrounding plains.

The vegetation surrounding Lake Bindegolly is characteristic of semi-arid Australia, with chenopod shrubland dominated by saltbush and bluebush communities around the lake margins, transitioning to mulga scrub and Mitchell grass plains in less saline areas. The lake margins support salt-tolerant plants adapted to the extreme conditions of the saline, periodically flooded lake shores. Samphire (Halosarcia) communities occupy the most saline lake margins.

Lake Bindegolly is a salt lake system formed in the flat landscape of southwestern Queensland. The lakes occupy shallow depressions in the arid landscape that collect water following rare rainfall events. The saline character of the lakes reflects the accumulation of salts through evaporation over thousands of years. The surrounding landscape is underlain by ancient sedimentary rocks that have been reshaped by aeolian and fluvial processes over millions of years.

Southwestern Queensland is extremely arid, with very low and highly variable annual rainfall. Temperatures are extreme, with summer maxima regularly exceeding 40°C and winter nights occasionally near freezing. The lakes may remain dry for years between filling events. When rainfall fills the lakes, the ecological transformation is dramatic and rapid. The best time to visit is during or after rainfall events when waterbirds congregate.

The Cunnamulla region was inhabited by Aboriginal peoples including the Mardigan and Budjiti peoples, who developed sophisticated knowledge of the seasonal patterns of this arid landscape. The rare flooding events that fill the lakes would have been significant events in Aboriginal cultural life. European pastoralists settled the region in the nineteenth century.

Lake Bindegolly National Park was established following the Ramsar listing of the lakes, recognising their global significance as habitat for migratory shorebirds. Management focuses on maintaining the natural hydrology of the lake system and protecting the wetlands from inappropriate impacts during the rare flooding events.

The extraordinary waterbird aggregations following lake filling events are the primary attraction. The spectacle of hundreds of thousands of waterbirds including banded stilts is one of Australia's great natural events. Birdwatching during dry periods reveals the diverse resident bird community. The vast, remote outback landscape is itself a significant experience.

Lake Bindegolly National Park has limited visitor facilities. Access is via unsealed roads from Thargomindah. A four-wheel-drive vehicle is recommended. Thargomindah provides limited services. Visitors must be self-sufficient. The park is most rewarding to visit following rainfall events when waterbirds are present.

Maintaining the natural hydrology of the Ramsar-listed lake system is the primary management objective. Protecting the lakes from pollution and inappropriate development is essential. Monitoring waterbird populations provides information on the ecological condition of this internationally significant wetland.