Acrocephalus hiwae
The Saipan Reed Warbler (Acrocephalus hiwae) is a critically endangered island endemic, a diminutive yet distinctive passerine found exclusively on Saipan in the Northern Mariana Islands. Measuring approximately 16-17 cm (6.3-6.7 inches) in length and weighing around 18-24 grams, it is notably larger than many of its *Acrocephalus* relatives, earning it the moniker 'Saipan's giant reed warbler'. Its plumage is generally drab, featuring olive-brown to grayish-brown upperparts that contrast sub...
This species strictly inhabits dense, low-lying freshwater and brackish wetlands, primarily utilizing reed beds, tall grasses, tangles of vines, and dense shrubbery, often near springs or slow-moving water bodies.
Primarily insectivorous, the Saipan Reed Warbler feeds on a variety of invertebrates including insects (such as beetles, flies, and caterpillars) and spiders, which it gleans from foliage and stems.
The Saipan Reed Warbler is a diurnal and highly secretive bird, typically remaining concealed within the dense undergrowth of its wetland habitat, making visual observation challenging. Foraging involves meticulously gleaning insects and spiders from leaves, stems, and crevices of vegetation, oft...
The Saipan Reed Warbler is an extremely restricted resident species, endemic solely to the island of Saipan in the Northern Mariana Islands, an unincorporated territory of the United States. Its entire known global distribution is confined to a few isolated patches of dense wetland vegetation, pr...
Critically Endangered
- The Saipan Reed Warbler is one of the world's most critically endangered birds, with an estimated population of only a few hundred individuals. - It is endemic solely to the island of Saipan in the Northern Mariana Islands, making its entire global range incredibly small. - Despite its name, it...