6705
Three species of the family Columbidae – the Henderson ground dove , the Henderson imperial pigeon and the Henderson archaic pigeon – were formerly endemic to the island , but became extinct when the Polynesians arrived around 1000 CE .
 location: Henderson; location: Henderson; location: Henderson
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Henderson; location: Henderson; location: Henderson