The yellow-green tanager (''Bangsia flavovirens'') is a species of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...

in the family

Thraupidae The tanagers (singular ) comprise the bird family Thraupidae, in the order Passeriformes. The family has a Neotropical distribution and is the second-largest family of birds. It represents about 4% of all avian species and 12% of the Neotropica ...

. It was formerly known as the yellow-green bush tanager or yellow-green chlorospingus as it used to be placed in the genus ''

Chlorospingus ''Chlorospingus'' is a genus of perching birds, the bush tanagers, traditionally placed in the tanager family (Thraupidae). More recent studies which suggest they are closely related to the genus '' Arremonops'' in the Passerellidae (American spa ...

'' with other bush tanagers. ''Chlorospingus'' as a whole was formerly placed in the tanager family Thraupidae, but was transferred to the

New World sparrow New World sparrows are a group of mainly New World passerine birds, forming the family Passerellidae. They are seed-eating birds with conical bills, brown or gray in color, and many species have distinctive head patterns. Although they share t ...

s when genetic analysis of two ''Chlorospingus'' species revealed they were embedded within the latter family. However, more recently, molecular analysis of additional ''Chlorospingus'' species found that the yellow-green tanager is not a member of ''Chlorospingus'' (or any other New World sparrow) but a true tanager after all, most closely related to the blue-and-gold tanager, so the species was returned to

and placed in the genus ''

Bangsia ''Bangsia'' is a genus of Neotropical birds in the tanager family Thraupidae. They are native to humid forests in Colombia, Ecuador, Panama and Costa Rica. Taxonomy and species list The genus ''Bangsia'' was introduce in 1919 by the ornithologi ...

''. The yellow-green tanager is found in

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

and

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

. 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 ...

s are

subtropical or tropical moist lowland forest Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forest, is a subtropical and tropical forest habitat type defined by the World Wide Fund for Nature. Description TSMF is generally found in large, discont ...

and subtropical or tropical moist

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...

. 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-green tanager Birds of the Colombian Andes Birds of the Ecuadorian Andes yellow-green tanager yellow-green tanager Taxonomy articles created by Polbot {{Thraupidae-stub