Justification
This species occupies a very small range on one island, and therefore has a small total population. As it appears to be most abundant in forest, the continuing degradation of this habitat within its range, and hence a concomitant decline in population, qualifies it as Endangered.
Taxonomic source(s)
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Identification
14 cm. Strikingly patterned flycatcher. Black head, chest and upperparts with underparts, rump and distal half of outer-tail feathers white. Immature greyer and browner, with or without a rusty rump. Similar spp. Male White-shouldered Triller Lalage sueurii has white throat and large area of white on wing. White-breasted Wood-swallow Artamus leucorhynchus has shorter tail lacking white and very different, aerial habits. Voice Slightly tremulous, plaintive whistle and harsh, scolding notes.
Distribution and populationMonarcha everetti is endemic to the island of Tanahjampea in the Flores Sea, between the southern peninsula of Sulawesi and the island of Flores in Nusa Tenggara,
Indonesia (BirdLife International 2001). Historical records indicate that it was relatively common and widespread on the island, and this was confirmed during a brief survey in 1993. A total of 43 birds were seen in two days in and around Labuhanmarege (including along the road up to the microwave station at the highest point of the island).
Population justificationThe population is estimated to number 1,000-2,499 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 667-1,666 mature individuals, rounded here to 600-1,700 mature individuals.
Trend justificationThe species is suspected to be declining at a moderate rate, owing to the on-going clearance of forest habitats through agricultural encroachment and logging.
EcologyIt is presumably a sedentary resident. In 1993, it was found to be quite common in logged evergreen forest and less common in scrub and mangroves with scattered big trees, indicating that it is tolerant of some habitat degradation. Often two individuals, rarely up to four, were seen together, and the species was commonly observed associating with mixed foraging flocks.
ThreatsThe main threat probably comes from deforestation. In September 1993, up to half (i.e. c.75 km
2) of the island was still forested, although all the forest seen had been extensively logged. "Relatively large volumes of timber" were continuing to be logged to support the settlement, construction and boat building needs of the island's population (reported to number c.100,000 in 1993). It was thought that any large-scale increase in logging would have serious consequences for the species.
Conservation actions underwayNo targeted conservation actions are known for this species.
Conservation actions proposedConduct further fieldwork to identify the most important areas for this species and its tolerance of habitat degradation. Determine and implement appropriate conservation measures based on these surveys, including establishment of an appropriate protected area if necessary.
References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Further web sources of information
Alliance for Zero Extinction (AZE) species/site profile. This species has been identified as an AZE trigger due to its IUCN Red List status and limited range.
Click here for more information about the Alliance for Zero Extinction (AZE)
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).
View photos and videos, and hear sounds of this species from the Internet Bird Collection
Text account compilers
Benstead, P., Bird, J., Davidson, P., Taylor, J., Tobias, J.
Contributors
Dutson, G.
IUCN Red List evaluators
Butchart, S., Symes, A.
Recommended citation
BirdLife International (2013) Species factsheet: Monarcha everetti. Downloaded from
http://www.birdlife.org on 19/06/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/06/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
Additional resources for this species
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