Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Henderson Island' has mentioned 'Well' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Three species of the family Columbidae xe2x80x93 the Henderson ground dove, the Henderson imperial pigeon and the Henderson archaic pigeon xe2x80x93 as well as a species of Polynesian sandpiper, were formerly endemic to the island, but became extinct when the Polynesians arrived around 1000 CE. | WIKI |
| The challenge of preventing new introductions, especially as the island is unguarded and tourists as well as fishermen regularly land on the island, are one of the greatest threats to the continued integrity of the property. | UNESCO |