Little Corellas Wreak Havoc on Kangaroo Island: Culling Efforts Prove Insufficient

The little corella infestation on Kangaroo Island has reached critical levels, with the birds causing widespread destruction and disruption to daily life. Despite a recent culling effort that resulted in the death of 2,640 little corellas, authorities acknowledge that it won't be enough to mitigate the problem.

The birds, which are not native to the island, have been covering a local school in faeces, tearing up infrastructure, damaging crops, and causing mental distress to residents with their screeching. They have also been spotted using the nesting hollows of the endangered glossy-black cockatoo, smashing their eggs and killing their nestlings.

Past attempts to control populations by shooting, scaring, trapping, or gassing them have failed, with the highly intelligent birds learning how to survive or just moving to cause havoc somewhere else. The Kangaroo Island Landscape Board's general manager, Will Durack, says that night-time shooting was more efficient, with the roosting birds easier to kill in large numbers, but it is not clear how much of a dent they made in the population.

The little corellas have created a perfect environment for themselves on the island, with a predictable water supply from stock troughs and dams, and food from grain crops. Residents have expressed concerns about the physical and mental health impacts of the infestation, including the spread of diseases such as ornithosis and the disruption to daily life caused by the birds' loud shrieks.

Coordination with other agencies and more resources are needed if the trial is to be expanded, according to the landscape board. A resident, Rodney Bell, has four grandchildren at the school and says: “They poo all over the yard, then the kids are playing in it.” He also mentions that “near the school, they would drive anyone insane from the sheer noise.”