Campbell Island has seen reduction of 79% to 87% since the 1940s.
Campbell Island is a place of rugged scenery and abundant wildlife.
On Campbell Island the feral sheep provided high quality lamb and mutton.
Rats were eventually eradicated from Campbell Island in 2001.
Until 1995, scientific research staff were stationed permanently at a meteorological station on Campbell Island.
The other major breeding area is the Campbell Islands.
His intended destination had been Campbell Island, several hundred miles further south.
Campbell Island, New Zealand is declared rat free, nearly 200 years after their introduction.
The meteorological station on Campbell Island has been unmanned and automated since 1995.
Campbell Island was reached on 18 November and the remainder of the expedition was dropped off.