Rufous-fronted greenlet

Rufous-fronted greenlet
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Vireonidae
Genus:	Tunchiornis
Species:	T. ferrugineifrons
Binomial name
Tunchiornis ferrugineifrons (Sclater, 1862)

The rufous-fronted greenlet (Tunchiornis ferrugineifrons) is a passerine bird in the family Vireonidae, the vireos. It is found in South America from Guyana and Brazil west of the Rio Negro north into Venezuela, east into southeast Colombia and south through Ecuador, Peru and Bolivia. It was split from the ochre-crowned greenlet in 2025 by the IOC and Clements Checklist. ^[1] Owing to its recent separation as a species, virtually nothing distinctive is known about its natural history. ^[2]

Taxonomy

The rufous-fronted greenlet was formally described in 1862 as Hylophilus ferrugineifrons by the English zoologist Philip Sclater from a holotype collected in Bogota, Colombia. It was subsequently considered to be a subspecies of tawny-crowned greenlet (now called ochre-crowned greenlet). ^[3]

Two subspecies are recognised: ^[4]

• T. f. ferrugineifrons (Sclater, PL, 1862) – southeastern Colombia eastward to southern Venezuela, far western Guyana, and northwestern Brazil (west of the Río Negro), southward to northeastern Peru and western Amazonian Brazil south of the Amazon River, eastward to the west bank of the Río Madeira
• T. f. viridior (Todd, WEC, 1929) – eastern Peru (south of the Marañón River and Amazon River) southward to northern Bolivia

References

1. "Treat Tunchiornis ochraceiceps (Tawny-crowned Greenlet) as consisting of four species". museum.lsu.edu. Retrieved 28 November 2025.
2. Remsen Jr., J. V.; Kirwan, Guy M.; Boesman, Peter F. D.; Brewer, David; del Hoyo, Josep; Collar, Nigel. "Rufous-fronted Greenlet (Tunchiornis ferrugineifrons)". Birds of the World. Retrieved 28 November 2025.
3. Sclater, Philip Lutley (1862). "Dr. P. L. Sclater On New Birds From Bogota". Proceedings of the Zoological Society of London: 109–112.
4. AviList Core Team (2025). "AviList: The Global Avian Checklist, v2025". doi: 10.2173/avilist.v2025 . Retrieved 9 December 2025.