Important Bird Areas of the Caroline Islands

Babeldaob (also Babelthuap) is the largest island in the island nation of Palau. It is in the western Caroline Islands, and the second largest island (after Guam) in the Micronesia region of Oceania. Palau's capital, Ngerulmud, is located on Babeldaob, in Melekeok State.

Peleliu (or Beliliou) is an island in the island nation of Palau. Peleliu, along with two small islands to its northeast, forms one of the sixteen states of Palau. The island is notable as the location of the Battle of Peleliu in World War II.

archipelago in Koror State, Palau

thumb|Map of Kayangel and Palau Kayangel (Ngcheangel) is the northernmost state of Palau north of Koror. The land area is about . The population is 54 (2015 census). There is one hamlet in the state - Orukei, which is also its capital. In 2020, Richard Ngiraked was elected governor of the state.

Tobi, or Hatohobei (Tobian), is the southernmost of Palau's sixteen states, consisting of Tobi Island and Helen Reef. The total land area is about 0.88 km². The population was 25 in 2015. Tobian, English, and Sonsorolese are the official languages of Hatohobei State.

island in Palau