The black-headed siskin (Spinus notatus) is a species of finch in the family Fringillidae. It is found in Mexico, Belize, El Salvador, Guatemala, Honduras, and Nicaragua. Its natural habitats are subtropical or tropical moist montane forest and heavily degraded former forest.
| Black-headed siskin | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Fringillidae |
| Subfamily: | Carduelinae |
| Genus: | Spinus |
| Species: | S. notatus
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| Binomial name | |
| Spinus notatus (Du Bus de Gisignies, 1847)
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| Synonyms | |
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Carduelis notata | |
Evolution and systematics
editRecent work suggests the species radiation happened much later, within the last 1 million years, and posits the radiation happened due to climate change in the late Pleistocene. The changing climate could have fragmented various habitats in the Andes, initiating allopatric speciation.[2]
References
edit- ^ BirdLife International (2020). "Spinus notatus". IUCN Red List of Threatened Species. 2020: e.T22720392A139224440. doi:10.2305/IUCN.UK.2020-3.RLTS.T22720392A139224440.en. Retrieved 12 November 2021.
- ^ Beckman, Elizabeth J.; Witt, Christopher C. (1 June 2015). "Phylogeny and biogeography of the New World siskins and goldfinches: Rapid, recent diversification in the Central Andes". Molecular Phylogenetics and Evolution. 87: 28–45. doi:10.1016/j.ympev.2015.03.005. ISSN 1055-7903. PMID 25796324.
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