Basileuterus is a genus of New World warblers, best represented in Central and South America. This is one of only two warbler genera that are well represented in the latter continent. Some species formerly considered in this genus are now placed in the genus Myiothlypis. It is likely that the ancestors of this genus colonised South America from the family's heartland in northern Central America even before the two continents were linked, and subsequent speciation provided most of the resident warbler species of that region.
The common chlorospingus, also referred to as common bush tanager, is a small passerine bird. It is a resident breeder in the highlands from central Mexico south to Bolivia and northwest Argentina. C. flavopectus in the loose sense is a notorious cryptic species complex, and several of the up to 25 subspecies recognized in recent times are likely to be distinct species. Some populations in fact appear to be more distinct than several other members of Chlorospingus.
The sooty-capped chlorospingus or sooty-capped bush tanager is a small passerine bird traditionally placed in the family Thraupidae, but now viewed closer to Arremonops in the Passerellidae. This bird is an endemic resident breeder in the highlands of Costa Rica and western Panama.
The Tacarcuna bat is a species of vesper bat. It is found in Costa Rica, Panama and possibly Colombia.
The Tacarcuna wood quail is a species of bird in the family Odontophoridae, the New World quail. It is found in Colombia and Panama.
The yellow-headed brushfinch is a Near Threatened species of bird in the American sparrow family, Passerellidae. It is endemic to Colombia. The common name is a semi-literal translation of the scientific name, with Atlapetes referring to the brushfinch genus, and flaviceps meaning "yellow-headed".
The three-striped warbler is a species of bird in the family Parulidae. It was previously considered conspecific with the Tacarcuna warbler and the black-eared warbler. This bird is found in South America from Venezuela to Peru. The Yungas warbler was previously considered a subspecies.
The ashy-throated chlorospingus or ashy-throated bush tanager is a species of bird traditionally placed in the family Thraupidae, but perhaps closer to Arremonops in the Passerellidae. It is found in Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist montane forests.
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. As of July, 2017, the American Ornithological Society assigns the genus to the new family Passerellidae, which contains the New World sparrows.
The yellow-throated chlorospingus or yellow-throated bush tanageris a species of bird traditionally placed in the family Thraupidae, but now closer to Arremonops in the Passerellidae. It is found in Bolivia, Colombia, Ecuador, Panama, and Peru.
The yellow-green tanager is a species of bird in the family Thraupidae. It was formerly known as the yellow-green bush tanager or yellow-green chlorospingus as it used to be placed in the genus Chlorospingus with other bush tanagers. Chlorospingus as a whole was formerly placed in the tanager family Thraupidae, but was transferred to the New World sparrows 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 but a true tanager after all, most closely related to the blue-and-gold tanager, so the species was returned to Thraupidae and placed in the genus Bangsia.
The Pirre chlorospingus or Pirre bush tanager is a species of bird traditionally placed in the family Thraupidae, but now viewed closer to Arremonops in the Passerellidae. It is endemic to Panama. Its natural habitat is subtropical or tropical moist montane forests.
The yellow-whiskered chlorospingus, yellow-whiskered bush tanager or short-billed bush-tanager is a species of bird traditionally placed in the family Thraupidae, but now viewed closer to Arremonops in the Passerellidae. It is found in Bolivia, Colombia, Ecuador, and Peru.
The dusky chlorospingus or dusky bush tanager is a species of bird traditionally placed in the family Thraupidae, but now viewed closer to Arremonops in the Passerellidae.
The silvery-fronted tapaculo is a species of bird in the family Rhinocryptidae. It is found in Costa Rica and Panama.
The Tacarcuna tapaculo is a species of bird in the family Rhinocryptidae. It is found in Panama and Colombia.
The Nariño tapaculo is a species of bird in the family Rhinocryptidae. It is found in Colombia and Ecuador.
The Tacarcuna warbler is a species of bird in the family Parulidae. It was previously considered conspecific with the three-striped warbler, and the black-eared warbler.
The Eastern Panamanian montane forests (NT0122) is an ecoregion in the east of Panama and the extreme northwest of Colombia. It contains diverse flora and fauna, with considerable endemism. The ecoregion is largely intact due to its inaccessibility, although the opening of an extension of the Pan-American Highway has introduced threats from human activity.
