Assertion: petrel's colony | /r/HasProperty | estimated with 10,000 pairs
Facets:
value: on hongiora island
type: LOCATION
value: at 840,000 pairs
type: OTHER
Source sentences:
text: The largest colony, on Rangatira Island (Chatham Islands) was estimated at 840,000 pairs, with 10,000 pairs on Hongiora Island, Alderman Islands.