Great Shortwing
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The great shortwing (''Heinrichia calligyna'') is a species of bird in the family Muscicapidae, and the only member of its genus. Other common names include giant shortwing, Celebes shortwing and Sulawesi shortwing. It is endemic to
Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
in Indonesia where its natural habitat is
tropical moist montane forest A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest (TMCF), is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud c ...
s.


Description

The great shortwing is a stocky bird with short rounded wings, growing to a length of about . In general size and shape it resembles a European robin (''Erithacus rubecula''). The male is almost entirely very dark blue apart from a small patch of white at either side of the base of the tail. The female is a similar blue colour but has a white spot in front of the eye and a reddish-brown rump. It has a reddish-brown sheen to the throat and upper breast, and greyish-blue underparts. Both sexes have red irises, black beaks and greyish legs.


Distribution

The great shortwing is endemic to the island of Sulawesi in Indonesia where it occurs at altitudes between . Three
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
are recognised. ''H. c. simplex'' from northern Sulawesi, ''H. c. calligyna'' from south-central Sulawesi, and ''H. c. picta'' from southeastern Sulawesi.


Ecology

The great shortwing is a shy and secretive bird which lurks in dense foliage, tangled thickets, vines, deep gullies and streamside vegetation. It can sometimes be heard singing in the early morning from dense cover, often with two birds singing in duet. The song is a high-pitched, wavering series of whistles that increase in pitch and volume, the phrase being repeated, over and over again, for up to a minute. The bird feeds on the ground, foraging through the leaf litter, mosses and lichens, presumably feeding on insects, grubs and other small invertebrates. The nesting habits are unknown, but a juvenile was observed in Lore Lindu National Park in September 2016.


Status

Little is known of the conservation status of the great shortwing but the bird is suspected of declining in numbers because of the destruction of its habitat and the introduction of feral predators. Its area of occurrence is estimated to be about . It is an uncommon species in the lower part of its range but rather more common in the upper part. The International Union for Conservation of Nature has assessed its conservation status as being of " least concern".


References

{{Taxonbar, from=Q853471 Heinrichia Endemic birds of Sulawesi Birds described in 1931 Taxonomy articles created by Polbot