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WatchList Species Account
for Kama’o (Myadestes myadestinus)
Endemic to Kauai, the Kama’o was
once the most common of the forest birds on that island, but
by the 1920s had become restricted to dense montane swamp
above 1,000 m in the Alaka’i Wilderness Preserve. It
favored forested stream valleys and associated ridges. The
mesic forest there is largely dominated by introduced species.
The largest of the Hawaiian thrushes, it was primarily frugivorous
but took some insects and other invertebrates. Threats to
the bird included mosquito-borne diseases, predation by feral
cats and rates, and possibly competition from introduced birds.
Degradation of the forest and introduction of alien plants
was brought about by the spread of feral pigs into the Alaka’i
Swamp. Upland forest on the island was severely impacted by
two hurricanes in the last few years, which may have further
depressed its numbers. By 1973 its population was estimated
at 337 individuals, but by 1981 estimates were that only 24
continued to survive. The last probably sighting was in 1989
with other reports in the early 1990s, but in 1995 an extensive
effort by the Rare Bird Search Team failed to locate it. It
seems probable that the bird is extinct.
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