In late December 2007, there was an incursion of 4 Canada geese into coastal southern NSW, probably from New Zealand. By the end of January the birds had disappeared, but it is not known whether they were removed or have relocated.
Historical data indicate that the risk of establishment by such a small number of birds is low. However, further incursions are likely and other birds may already be present. They could inhabit the extensive wilderness areas of the NSW National Parks for some time without being observed. The current population of over 35,000 in New Zealand originated from only 50 birds.
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