The Nauru reed warbler is a passerine bird endemic to the island of Nauru in the Pacific Ocean. It is one of only two native breeding land-birds on Nauru and it is the only passerine found on the island. It is related to other Micronesian reed warblers, all of which evolved from one of several radiations of the genus across the Pacific. Related warblers on nearby islands include the Caroline reed warbler, with which the Nauru species was initially confused, and the nightingale reed warbler, which was formerly sometimes considered the same species.
Region
Micronesia
Typical Environment
Occurs only on Nauru, using dense coastal Scaevola thickets, pandanus and coconut plantations, and scrubby secondary growth among limestone pinnacles. It frequents edges of the island’s interior depression and vegetation around Buada Lagoon. The species tolerates disturbed habitats and often forages in gardens and regenerating scrub. Nests are placed in shrubs or small trees, typically 1–3 m above ground in protected foliage.
Altitude Range
Sea level to 65 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
The Nauru reed warbler is the only passerine native to the tiny island nation of Nauru. It has adapted to a mosaic of coastal thickets, pandanus and coconut groves, and secondary scrub left after phosphate mining. Its close relatives occur on other Micronesian islands, reflecting an island-radiation of reed warblers. With its entire range confined to a single small island, it is vulnerable to habitat loss and extreme weather.
Temperament
solitary and territorial
Flight Pattern
short rapid wingbeats with low, undulating flights between cover
Social Behavior
Typically found singly or in pairs, especially during the breeding season when territories are defended by song. Nests are cup-shaped and woven into forks of shrubs or small trees. Clutches are small, and both parents participate in feeding the nestlings.
Migratory Pattern
Resident
Song Description
A loud, varied warble of chattering notes, squeaks, and trills delivered from exposed perches or within cover. The song can include mimicry of other local sounds and is used prominently in territorial defense.
