In the Hen and Chicken Islands, Pacific rats were eradicated on Whatupuke in 1993, Lady Alice Island in 1994, and Coppermine Island in 1997.
Spośród grupy wysp Hen and Chicken na Pacyfiku szczury usunięto z Whatupuke w 1993 roku, z Lady Alice Island w 1994 i z Coppermine Island w 1997.