Bokikokiko

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Fanning - Warbler (Acrocephalus aequinoctialis )

The Fanning - Warbler (Acrocephalus aequinoctialis ), Polynesian called Bokikokiko, is a species of bird in the genus of warblers, which is endemic to Kiribati.

Features

The Fanning warbler reaches a body length of 16 cm and a weight of 25 g in contrast to the gray top are the bright rump, the upper tail-coverts bright and the dark gray tail. The tips of the middle and the large coverts form two whitish wing bars, the edges of the feathers a bright wing mirror. Adult specimens of the subspecies A. a aequinoctialis show a conspicuous, long, white over eye-streak and a whitish underside with pale gray mottling on the breast. The subspecies A. a pistor is slightly larger than the nominate. She wears a greyish, indistinct About eye-streak, their bottom is washed out light gray and the lower throat and upper breast are dashed indistinct.

Occurrence

The Fanning warbler is now only on the counting to the Northern Line Islands Atoll Kiritimati (formerly Christmas Island or Christmas Island ) and on Teraina (Washington Iceland ) before, on the endemic breeding bird was still common in the 1980s on, formerly also on Tabuaeran ( Fanning island), hence the name Fanning warbler comes and has not been detected there since 1972.

Way of life

The Fanning - warbler is a stationary, reluctant flying bird. His food he studied mostly on the ground, in low ground cover and dead or low branches near the ground. It feeds on insects, including flies and dragonflies, and small lizards.

Endangering

The range of the species is limited to a few atolls in the Northern Line Islands. The Fanning warbler is threatened by introduced rats and cats by poorly planned immigration, fire, and loss of habitat due to deforestation for cultivation of coconut palms and subsequent fouling by Pluchea indica. Also hunting with slings by children set to pose a threat The decreasing population is estimated at 3500-15000 individuals. The Fanning warbler is therefore listed by the IUCN in the category of endangered ( EN, endangered ).

Subspecies

There are described two subspecies:

• Acrocephalus aequinoctialis aequinoctialis ( Latham, 1790) - Kiritimati (formerly Christmas Island, " Christmas Island " Northern Line Islands ).
• Acrocephalus aequinoctialis pistor Tristram, 1883 - Teraina and Tabuaeran (two atolls in the Northern Line Islands ).