| Aguiguan reed warbler | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Acrocephalidae |
| Genus: | Acrocephalus |
| Species: | A. nijoi |
| Binomial name | |
|
Acrocephalus nijoi Yamashina, 1940 |
|
The Aguiguan reed warbler or Aguijan reed warbler (Acrocephalus nijoi) originally occurred on the Northern Mariana Island Aguigan. It is considered a subspecies of the nightingale reed warbler by some taxonomists. Of this subspecies there never have been reports of a substantial population. In 1982 only four up to possibly 15 birds of the subspecies have been counted, and since 1995 none has been sighted, despite extended efforts to find specimens.