Warbler-finch

The warbler-finches are a genus Certhidea of birds in the tanager family Thraupidae that are endemic to the Galápagos Islands. Together with related genera, they are collectively known as Darwin's finches.

Warbler-finches
Grey warbler-finch (Certhidea fusca)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Thraupidae
Genus:	Certhidea Gould, 1837
Type species
Certhidea olivacea Gould, 1837
Species
C. olivacea C. fusca

The two species were formerly considered to be conspecific; however, they have different songs, prefer different habitats, and are located in different areas on the islands.^[1]

Taxonomy and species list

The genus Certhidea was introduced in 1837 by the English ornithologist John Gould with the green warbler-finch as the type species.^[2][3] The name is a Latin diminutive of the genus Certhia introduced by Carl Linnaeus in 1758 for the treecreepers.^[4] The members of the genus form part of a group collectively known as Darwin's finches.^[5] Although traditionally placed with the buntings and New World sparrows in the family Emberizidae,^[3] molecular phylogenetic studies have shown that Darwin's finches are members of the subfamily Coerebinae within the tanager family Thraupidae.^[6] The genus contains two species.^[7]

Image	Scientific name	Common Name	Distribution
	Certhidea olivacea	Green warbler-finch	Galápagos Islands, Ecuador
	Certhidea fusca	Grey warbler-finch	Galápagos Islands, Ecuador.

References

1. South American Classification Committee (September 1, 2011). "Proposal (#367) to South American Classification Committee – Split the Warbler Finches: Certhidea fusca from Certhidea olivacea". Retrieved November 10, 2009.
2. Gould, John (1837). "Remarks on a group of Ground Finches from Mr. Darwin's collection, with characters of new species". Proceedings of the Zoological Society of London. Part 5 (49): 4–7 [7].
3. Paynter, Raymond A. Jr, ed. (1970). Check-List of Birds of the World. Vol. 13. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 166.
4. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 97. ISBN 978-1-4081-2501-4.
5. Sato, A.; Tichy, H.; O'hUigin, C.; Grant, P.R.; Grant, B.R.; Klein, J. (2001). "On the origin of Darwin's Finches". Molecular Biology and Evolution. 18 (3): 299–311. doi:10.1093/oxfordjournals.molbev.a003806. PMID 11230531.
6. Burns, K.J.; Shultz, A.J.; Title, P.O.; Mason, N.A.; Barker, F.K.; Klicka, J.; Lanyon, S.M.; Lovette, I.J. (2014). "Phylogenetics and diversification of tanagers (Passeriformes: Thraupidae), the largest radiation of Neotropical songbirds". Molecular Phylogenetics and Evolution. 75: 41–77. doi:10.1016/j.ympev.2014.02.006. PMID 24583021.
7. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2020). "Tanagers and allies". IOC World Bird List Version 10.2. International Ornithologists' Union. Retrieved 12 November 2020.