Saipan Reed Warbler (Acrocephalus hiwae)

The Saipan Reed Warbler is a small, nondescript bird that is native to the Mariana Islands, specifically the islands of Guam and Saipan. The bird is part of the family Acrocephalidae, which consists of small to medium-sized passerine birds.

The Saipan Reed Warbler is a bird that prefers to live in dense vegetation, particularly in areas near wetlands and marshes. It typically measures about 13 cm in length, with a wingspan of approximately 18 cm and a weight of around 11 g. The bird has a brownish-grey plumage with hints of olive-green on its upperparts. Its underparts are lighter, typically a yellowish color, and it has a pale eyebrow and a pointed bill.

Unfortunately, the Saipan Reed Warbler is an endangered species, with its population on the brink of extinction due to habitat destruction and predation from invasive species such as the brown tree snake. The bird's natural habitat has been destroyed due to human development and the introduction of non-native plants and animals, which has caused the species to be restricted to only a few isolated areas on the islands.

Efforts are currently underway to save the Saipan Reed Warbler from extinction, including habitat restoration, captive breeding, and reintroduction programs. These efforts have proven successful in some cases, with several bird populations showing signs of recovery.

The conservation of the Saipan Reed Warbler is crucial not only for the survival of the species but also for the preservation of the fragile ecosystems of the Mariana Islands. The bird plays an important role in controlling insects and other small prey, and its presence in certain habitats is an indicator of healthy wetland ecosystems.

In conclusion, the Saipan Reed Warbler is a small bird but an important one, not only for ecological reasons but also as a symbol of the unique biodiversity of the Mariana Islands. With continued efforts to restore its habitat and protect it from invasive species, there is hope that this endangered bird will be able to thrive once again.

Other names

Acrocephalus hiwae



Saipan Reed Warbler



dugokljuni trstenjak




Rousserolle de Saipan




trzciniak wielkodzioby


Сайпанская камышевка

trsteniarik saipanský

Carricero de Saipán


Guam Kamışçını

очеретянка саїпанська