The dark-winged trumpeter (Psophia viridis) is a species of bird in the Psophiidae family. It is found in the Amazon rainforest of Brazil, but only south of the Amazon River and east of the Madeira River. The eastern range of dark-winged trumpeter extends into the lower adjacent Tocantins River drainage in the Brazilian state of Pará. As of 2012, this species is listed as Endangered, with the easternmost subspecies obscura rare.
There are some differences in the colour of the back and chest in the subspecies, and it has been suggested that these should be treated as separate species: P. viridis between the Madeira and Tapajós rivers, P. dextralis between the Tapajós and Tocantins rivers, and P. obscura east of the Tocantins. The taxon dextralis can potentially be split further, with interjecta between Tocantins and Xingu, and "true" dextralis for the population between the Tapajós and Xingu.
- BirdLife International (2012). "Psophia viridis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- "Recently recategorised species". Birdlife International (2012). Archived from the original on 28 August 2007. Retrieved 15 June 2012.
- Oppenheimer and Silveira. 2009. A taxonomic review of the Dark-winged Trumpeter Psophia viridis (Aves: Gruiformes: Psophiidae). Papeis Avulsos de Zoologia 49(41): 547‑55
- Ribas, Aleixo, Nogueira, Miyaki and Cracraft. 2011. A palaeobiogeographic model for biotic diversification within Amazonia over the past three million years. Proceedings of the Royal Society
- Dark-winged trumpeter videos on the Internet Bird Collection
- Graphic-High Res; Article www.eeb.cornell.edu—Article: "trumpeters"
- 'Photo'/Graphic-Psophia viridis; Article "Animal Diversity Web"–"trumpeters"(3 species)
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