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Prigogine's Greenbul Chlorocichla prigoginei
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Justification
This species qualifies as Endangered as it is known from only a few sites and is therefore likely to have a very small and declining range owing to forest destruction. Surveys are required to confirm whether the total population is lower than inferred and whether the species is experiencing serious declines in the face of significant habitat loss, in which case it may qualify as Critically Endangered.

Taxonomic source(s)
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

Identification
20 cm. Medium-sized greenbul. Drab olive-green with yellow throat, greyish around lores and pale eye-ring. Similar spp. Could be confused with Joyful Greenbul C. laetissima or Yellow-bellied Greenbul C. flaviventris, but smaller and darker. Voice Unknown.

Distribution and population
Chlorocichla prigoginei is known from two sites: the Beni-Butembo area north-west of Lake Edward (14 specimens) and on the Lendu Plateau (1 specimen) in the eastern Democratic Republic of Congo. In February 1994, the first observations since 1981 were made in Djugu Forest (a known locality) on the Lendu Plateau. There are thought to be as few as 40-50 individuals on the Lendu Plateau, following the loss of forest there, and it has been suggested that the total population may possibly number no more than 250 individuals. However, surveys are required to confirm the size of populations at known sites and the extent to which it is restricted to these sites, as the species could occur over a larger area in the region than is known (L. Fishpool in litt. 2007).

Population justification
The population is estimated at 2,352-4,704 (6-12 individuals/km2 x 392 km2 [45% EOO]), i.e. perhaps best placed in band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals. Density from that recorded for congener Chlorocichla flaviventris, and up to the lower quartile of three estimates of eight African greenbuls.

Trend justification
The population is suspected to be in rapid decline, owing to habitat loss and degradation.

Ecology
The species occurs in forest patches, thickets and gallery forest along the upper courses of rivers at intermediate elevations (1,300-1,800 m), where it inhabits the dense understorey. More recently, birds have been located in a patch of slightly degraded, damp, montane forest on the Lendu Plateau (Pedersen 1997). It feeds on seeds, fruit and small caterpillars (Keith et al. 1992).

Threats
The status of the forest in the Beni-Butembo region is unknown but it is likely to be under serious threat from local encroachment and logging. Similarly, the Lendu Plateau habitat was reported to be under serious threat from encroachment from surrounding villages, including widespread and uncontrolled local logging (Pedersen 1997). In 1994, only c.20 ha of forest was seen to remain. Now, all forest on the Lendu Plateau is reported to be gone (N. Burgess in litt. 2003).

Conservation Actions Underway
No conservation action is known and neither the Lendu Plateau nor the Beni-Butembo area is currently protected. Conservation Actions Proposed
Survey known sites to determine the extent of remaining habitat. Conduct surveys to determine its distribution more accurately and to assess its population size. Protect remaining areas of suitable habitat.

References
Collar, N. J.; Stuart, S. N. 1985. Threatened birds of Africa and related islands: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, and International Union for Conservation of Nature and Natural Resources, Cambridge, U.K.

Keith, S.; Urban, E. K.; Fry, C. H. 1992. The birds of Africa vol. IV. Academic Press, London.

Pedersen, T. 1997. New observations of a Zaïrean endemic, Prigogine's Greenbul Chlorocichla prigoginei. Bulletin of the African Bird Club 7(2): 109-110.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Benstead, P., Ekstrom, J., Shutes, S., Taylor, J., Symes, A.

Contributors
Burgess, N., Fishpool, L.

IUCN Red List evaluators
Butchart, S., Taylor, J.

Recommended citation
BirdLife International (2014) Species factsheet: Chlorocichla prigoginei. Downloaded from http://www.birdlife.org on 22/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/08/2014.

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.

Key facts
Current IUCN Red List category Endangered
Family Pycnonotidae (Bulbuls)
Species name author De Roo, 1967
Population size 2500-9999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 870 km2
Country endemic? Yes
Links to further information
- Additional Information on this species