Question: What is the third most widespread species of rat in the world, which was partially responsible for the extinction of the Kauaʻi ʻōʻō?
Sentence (from "Polynesian rat"): The Polynesian rat, or Pacific rat ("Rattus exulans"), known to the Māori as kiore, is the third most widespread species of rat in the world behind the brown rat and black rat.
Relevant evidence: Yes