Assertion: stephen island wren | /r/HasProperty | swept by the pacific rats
Facets:
value: from the mainland
type: OTHER
Source sentences:
text: Thought to be the only flightless songbird in the world to be seen by Europeans, the Stephens Island wren was swept from the mainland by the Pacific rats that exterminated its two flightless relatives — the thick–thighed and long–billed wrens — hundreds of years before.