Cook Reed Warbler (Acrocephalus kerearako)

The Cook Reed Warbler is a charming little bird that belongs to the Acrocephalidae family. It is known to be one of the smallest warblers, measuring only 12 centimeters in length and weighing less than 10 grams. These birds are native to the islands of the Pacific, particularly on the Cook Islands after which they are named.

These birds are usually brownish-grey in color with a darker shade on their wings and back. They have a distinctive, thin beak that is ideal for catching insects. They are also known for their loud and melodious song, which can be heard in its habitat from early morning till late in the evening.

The Cook Reed Warbler is predominantly found in dense vegetation areas, particularly in swamps, reeds, and mangroves. These areas provide the bird with a safe haven from predators such as cats and other birds of prey.

The Cook Reed Warbler is a migratory bird, and its breeding season starts in September, and it ends in January with a peak in October. During this time, the males perched on high branches in the nests sing to attract females. Once the females are attracted, they build a nest together, usually on the top of the reed, often using ginger plant fibers or leaves for construction.

These birds feed on insects like spiders, beetles, fruit flies, and worms. They can consume up to a third of their body weight. They have also been observed feeding on small jellyfish. Although their diet includes insects, they are known to be important in our ecosystem as they help to control the population of insects that may cause harm.

Unfortunately, the Cook Reed Warbler is listed as Vulnerable to extinction by the International Union for Conservation of Nature (IUCN). The population of these birds is declining due to habitat loss and progressive deforestation. There is a need for governments and conservationists to come together to protect and conserve the remaining populations of the Cook Reed Warbler and other endangered bird species to prevent the birds from becoming extinct.

Other names

Acrocephalus kerearako



Cook Reed Warbler

boscarla de les illes Cook



žutotrbi trstenjak

rákosník mitiaroský




Rousserolle des Cook


Cannaiola delle Cook


Kuko nendrinukė


trzciniak oliwkowy


Камышевка островов Кука

trsteniarik ostrovný

Carricero de las Cook


Cook Adaları Kamışçını

очеретянка оливкова

mangaia roolind

mangaia-szigeti nádiposzáta