3/119 Hayward Avenue, Torrensville, South Australia, 5031
t: 08 7127 5607 f: 08 8352 1222 e: info@ebsrestoration.com.au

Based on Knowledge, Experience and Customer Service

White Ibis Management

White Ibis (Threskiornis molucca) made Roy Amer Reserve (in Oakden, South Australia) their home prior to 1999. A range of surveys spanning three breeding seasons were conducted to monitor the number of White Ibis utilising the wetland. During this time, their numbers have fluctuated (2009: 325 birds, 2010: 276 birds, 2011: 304 birds) however their domination of the small wetland has been consistent. This has created several issues including smell and noise (for park users and nearby residents), possible deleterious influence on water quality, and competition for breeding space with other species including the Little Pied Cormorant (Microcarbo melanoleucos) and Royal Spoonbill (Platalea regia).

In response, EBS Ecology developed an Australian White Ibis management plan for the City of Port Adelaide Enfield. One aim of the plan was to reduce the number of shrubs that White Ibis nested in, forcing them to return to their natural breeding grounds, such as the Barker Inlet. In March 2012, EBS Restoration removed shrubs and trimmed trees that represented key nesting habitat.

These restoration works have been successful in reducing the number of White Ibis that breed at Roy Amer, but as per the management plan have not completely removed them from the area. Current figures show that the population has been reduced to 113 individuals during the 2012 breeding season. Follow up restoration works are planned in early 2013, which hopes to further reduce numbers.

The visual amenity of the island has increased with the planting of new ground cover and importantly, both the Little Pied Cormorant and Royal Spoonbill have been recorded nesting during the 2012 breeding season.


Survey Site


Before EBS Restoration Works


After EBS Restoration Works


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