Assertion: petrel's population | /r/CapableOf | estimate at 10,000 - 50,000 pairs
Facets:
value: in four colonies
type: LOCATION
Source sentences:
text: Population estimated at 10,000 - 50,000 pairs in four colonies located in the highlands; breeds throughout the year, with different colonies nesting at different times; nests in burrows which are visited only at night.