Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Henderson Island' has mentioned 'Birds' in the following places:
Occurrence Sentence Text Source
Ten of its 51 flowering plants, all four of its land birds and about a third of the identified insects and gastropods are endemic xe2x80x93 a remarkable diversity given the island's size.
Contents 1 History 2 Natural resources 3 Geography 4 Flora 5 Fauna 5.1 Birds 5.2 Other animals 5.3 Biological risk 6 Plastic debris 7 Gallery 8 See also 9 References 10 Further reading 11 External links
They found the island's only known drinkable water source xe2x80x93 a brackish spring on the north shore, exposed at half tide xe2x80x93 and ate fish, birds, eggs, crabs and peppergrass, but within a week they had largely exhausted the readily available food.
Birds[edit]
The endemic birds may have no immunity to the fatal avian pox which is transmitted by biting flies such as hippoboscidae.
It exhibits remarkable biological diversity given the islandxe2x80x99s size, with four endemic species of land birds, ten taxa of endemic vascular plants and large breeding seabird colonies.
Criterion (x): While isolated coral atolls are typically species-poor, all four of Hendersonxe2x80x99s land birds are endemic including the very distinct flightless Henderson Crake.