It was among the first wave of native bird species to go extinct after the introduction of the Polynesian rat.
The Polynesian rat, which the original settlers brought with them, played a very important role in the disappearance of the Rapanui palm.
The Polynesian rat is similar in appearance to other rats, such as the black rat and the brown rat.
The entire project took out 22 feral cats, 209 pigs, 1,596 Polynesian rats, 1,205 black rats, and 1,948 common mice.
Polynesian rats have been observed to often take pieces of food back to a safe place to properly shell a seed or otherwise prepare certain foods.
Many species of rats are island endemics and some have become endangered due to habitat loss or competition with the brown, black or Polynesian rat.
They include the Polynesian rat (Rattus exulans), dogs and pigs.
They brought with them the Polynesian Rat (Kiore) and the domesticated dog.
One of the greatest threats to biodiversity is posed by introduced mammalian predators such as the Polynesian Rat.
It may have also have been attacked by the Polynesian Rats that were introduced by early settlers.