Data Zone
Justification of Red List category
This species has a large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence under 20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (under 10,000 mature individuals with a continuing decline estimated to be over 10% in ten years or three generations, or with a specified population structure). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (over 30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.
Population justification
It has been described as common and locally very common (Juniper and Parr 1998, Forshaw 2006), with a total population of more than 50,000 individuals (Juniper and Parr 1998). However, due to the age of this estimate and therefore the uncertainty surrounding it, the population size is now considered unknown. This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 17.3% within its mapped range over the past three generations (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). The species is known to adapt to some degree to degraded and secondary habitats, therefore it is unlikely that the species population size would be declining at a similar rate to tree cover loss. Nevertheless, as it is also subject to some trapping pressure, it is tentatively suspected that the species' population size has declined by between 1-9% over the past three generations.
Trend justification
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This species is endemic to Indonesia, where it is widespread on Sulawesi and surrounding offshore islands including Togian, Peleng, Banggai and Tukang Besi archipelago (Forshaw 2006). It is reported to no longer be common in northern and central parts of Sulawesi (per J. Gilardi in litt. 2010), but still seems to be common in the Togian islands and in the lowland forest at Torout (Bogani Nani NP) and to a lesser extent at Tangkoko (F. Lambert in litt. 2011, R. Hutchinson in litt. 2012).
This species does not require primary forest, preferring forest edge, secondary habitats, and open areas, including human-altered habitats (Juniper and Parr 1998, Forshaw 2006)
It is reportedly trapped in national parks such as Tangkoko and Lore Lindu, and individuals of this species are infrequently seen in bird markets (J. Gilardi in litt. 2010). It is apparently tolerant of, and maybe even prefers secondary forest and forest edge but is noticeably commoner in the extreme lowland forest then in the mountains and these lowland forests are most at threat of clearance (R. Hutchinson in litt. 2012).
Text account compilers
Rutherford, C.A.
Contributors
Hutchinson, R., Lambert, F. & Gilardi, J.
Recommended citation
BirdLife International (2024) Species factsheet: Ornate Lorikeet Trichoglossus ornatus. Downloaded from
https://datazone.birdlife.org/species/factsheet/ornate-lorikeet-trichoglossus-ornatus on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/12/2024.