• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <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 may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >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 (>30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.

Population justification
The global population size has not been quantified, but this species is described as extremely local and uncommon within its small range (del Hoyo et al. 2005). Based on its apparent rarity, and its small range, the population is suspected to be small, preliminarily placed here in the band of 10,000-19,999 mature individuals. Further research or better data are required to confirm this.

Trend justification
This species's population is inferred to be in decline owing to habitat destruction (del Hoyo et al. 2005; Global Forest Watch 2020).

Coracina graueri is known from the Democratic Republic of Congo where it is restricted to the east of the country from Djugu and Mongbwalu (west of Lake Albert) to south of Lutunguru (west of Lake Edward), also being found on Mt Kahuzi and south to Kitongo. It has recently been recorded from Uganda. It is extremely local and uncommon.

It is found in montane and transitional forest from 1,150-1,900 m (Stattersfield et al. 1998), where it forages in the understorey as well as in the upper branches of canopy trees (Lippens and Wille 1976), feeding mainly on caterpillars (Keith et al. 1992). It has been observed to lay its eggs at the end of the rainy season, in January, May and June (del Hoyo et al. 2005).

Its habitat, particularly transitional forest, is threatened by clearance for slash-and-burn agriculture, and unregulated logging (Stattersfield et al. 1998).

Conservation Actions Underway
No targeted conservation action is known for this species.

Conservation Actions Proposed
Conduct surveys to obtain a total population estimate. Monitor population trends through regular surveys. Monitor rates of habitat loss and degradation. Protect important habitat for the species.

Text account compilers
Clark, J.

Contributors
O'Brien, A., Robertson, P., Symes, A., Taylor, J. & Westrip, J.R.S.

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Recommended citation
BirdLife International (2024) Species factsheet: Grauer's Cuckooshrike Ceblepyris graueri. Downloaded from https://datazone.birdlife.org/species/factsheet/grauers-cuckooshrike-ceblepyris-graueri on 23/12/2024.
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 23/12/2024.