The Okinawa Rail is a flightless bird that only lives on the main island of Okinawa. It is endemic to Okinawa Island in Japan where it is known as the Yanbaru Kuina.
Its existence was only confirmed in 1978 and it was formally described
in 1981 although unidentified rails had been recorded on the island
since at least 1973 and local stories of a bird known as the agachi
kumira may refer to this species.
The Okinawa Rail is a
poor flyer but it can run rapidly. It spends most of its time on the
ground but usually roosts in trees, climbing up to sleep on a branch or
sloping trunk. In the morning, it preens and stretches before dropping
straight to the ground. It is usually found in dense cover but comes
into the open to bathe. It bathes for short bouts of 2-4 minutes before
preening for 4-20 minutes. It feeds on lizards, amphibians, snails and
large insects such as locusts.
The Okinawa Rail is in great
danger of disappearing for other reasons: forests clearing and traffic
accidents. But the conservation activities have not progressed much. One
reason is that nobody really understands how the Okinawa Rail lives.
Without knowing well about the creature, like where the Okinawa Rail
lives, what it eats, or how it raises its children, and how far it
travels, people cannot move forward with the conservation activities.
The species is classified as Endangered by BirdLife International because of its small, declining population and restricted range. The total population was estimated at 1,800 birds in 1986. Surveys between 1996 and 2004 suggested a significant decline to about 720 birds and a northward contraction of the range of about 40%. However, a survey in 2006 found no further range contraction. Source
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