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The island was its only breeding location for many years after the breeding colony on Norfolk Island was exterminated in the late 19th century , though a small population persists on the adjacent Phillip Island .
 Norfolk Island, Phillip Island
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Norfolk Island, Phillip Island