" This island's West contains the Digul and Sepik River.
The extreme northwest of this island contains the Doberai Peninsula, often referred to as the "Bird's Head." This island's West contains the Digul and Sepik River. This island's Bismarck range contains Mt. Wilhelm, and other islands located to its east include the Admiralty Islands, Bougainville, and New Britain. The western half of this island, called Irian Jaya, contains the peak Puncak Jaya, and this island is divided around 141 degrees east, with the exception of some of the border formed by the Fly River. For 10 points, identify this island which contains the  capital Port Moresby and is split between Indonesia in the West and a namesake country in the East.
The extreme northwest of this island contains the Doberai Peninsula, often referred to as the "Bird's Head.
{New Guinea} [do not accept "Papua New Guinea"]