The yellow-bearded greenbul (''Criniger olivaceus'') is a species of

songbird A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 500 ...

in the

bulbul The bulbuls are members of a family, Pycnonotidae, of medium-sized passerine songbirds, which also includes greenbuls, brownbuls, leafloves, and bristlebills. The family is distributed across most of Africa and into the Middle East, tropical As ...

family, Pycnonotidae. It is found in western Africa.

Taxonomy and systematics

Alternatively, the yellow-bearded greenbul has been classified in the genus ''

Xenocichla The bristlebills are a genus ''Bleda'' of passerine birds in the bulbul family Pycnonotidae. They are found in the forest understorey of western and central Africa. They forage for insects at or near ground-level, often near water. They will foll ...

'' (a synonym for ''Bleda'') and has also been considered as

conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organ ...

with the

white-bearded greenbul The white-bearded greenbul (''Criniger ndussumensis''), is a species of songbird in the bulbul family, Pycnonotidae. It is found from south-eastern Nigeria and western Cameroon to eastern Democratic Republic of the Congo and extreme north-western ...

. Alternate names for the yellow-bearded greenbul include the olive bulbul, olive greenbul, olive-bearded bulbul, yellow-bearded bulbul, yellow-throated olive bulbul and yellow-throated olive greenbul. The name 'olive bulbul' should not to be confused with the species of the same name, '' Iole virescens''.

Distribution and habitat

It is found in West Africa from eastern Sierra Leone to south-western Ghana. Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

is subtropical or tropical moist lowland

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

s. It is threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

References

yellow-bearded greenbul Birds of West Africa yellow-bearded greenbul Taxonomy articles created by Polbot {{Pycnonotidae-stub