Tests on DNA, taken from the carcasses of dead penguins found on beaches along Sydney's North Head, have not been able to identify whether the attackers were dogs or foxes.
Ten litte penguins, also known as fairy penguins, were killed by foxes or dogs over a nine day period earlier this month.
The department of environment and climate change says not enough DNA material was left on the penguins for investigators to make a conclusion.
Since the attacks, the department has hired trained marksmen to watch over the penguin colony after dark.
Source:
http://www.abc.net.au/news/stories/2009/07/29/2639647.htm
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