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Bay-chested warbling finch

Bay-chested warbling finch
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Thraupidae
Genus: Castanozoster
Burns, Unitt & Mason, 2016
C. thoracicus
Binomial name
Castanozoster thoracicus
(Nordmann, 1835)

The bay-chested warbling finch (Castanozoster thoracicus) is a species of bird in the family Thraupidae. It is endemic to southeastern Brazil.

Its natural habitats are temperate forests and subtropical or tropical moist montane forests.


The bay-chested warbling finch was formally described in 1835 by the Finnish naturalist Alexander von Nordmann from a specimen collected in Brazil. He coined the binomial name Frigilla thoracica.[2] This species was traditionally placed in the genus Poospiza.[3] A molecular phylogenetic study published in 2014 found that the genus was polyphyletic.[4] In the subsequent reorganisation the bay-chested warbling finch was moved to its own newly erected genus Castanozoster. The name combines the Ancient Greek καστανό meaning "chestnut" with ζωστήρ meaning "belt".[5][6] The bay-chested warbling finch is monotypic: no subspecies are recognised.[6]


  1. ^ BirdLife International (2016). "Castanozoster thoracicus". IUCN Red List of Threatened Species. 2016: e.T22723214A94808124. doi:10.2305/IUCN.UK.2016-3.RLTS.T22723214A94808124.en. Retrieved 12 November 2021.
  2. ^ Nordmann, Alexander von (1835). Erman, Adolf (ed.). Reise um die Erde durch Nord-Asien und die beiden Oceane, in der Jahren 1828, 1829 un 1830 ausgeführt. Naturistoricher Atlas (in German). Berlin: G. Reimer. p. 10, Plate 4 fig. 1.
  3. ^ Paynter, Raymond A. Jr, ed. (1970). Check-List of Birds of the World. Vol. 13. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 117.
  4. ^ 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.
  5. ^ Burns, K.J.; Unitt, P.; Mason, N.A. (2016). "A genus-level classification of the family Thraupidae (Class Aves: Order Passeriformes)". Zootaxa. 4088 (3): 329–354. doi:10.11646/zootaxa.4088.3.2. PMID 27394344.
  6. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2020). "Tanagers and allies". IOC World Bird List Version 10.2. International Ornithologists' Union. Retrieved 9 November 2020.

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Bay-chested warbling finch
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