The nominate subspecies (P. f. flavirostris) are found in the Atlantic forest in south-eastern Brazil, eastern Paraguay and Argentina (Misiones only). The subspecies P. f. boliviana, which only was rediscovered in 2000 (after 98 years without any records), is restricted to the vicinity of Apolo in Bolivia. Both populations are threatened by habitat loss.
The race P. f. boliviana is treated by BirdLife International and on the World Bird List Version 8.2 as a separate species, the palkachupa cotinga or the Bolivian swallow-tailed cotinga. However, the South American Classification Committee decided not to split the swallow-tailed cotinga in 2011, and a large molecular phylogenetic study of the family Cotingidae published in 2014 found only small differences between the DNA sequences of the two taxa and thus did not provide evidence to support the treatment of P. f. boliviana as a separate species.
- BirdLife International (2013). "Phibalura flavirostris". IUCN Red List of Threatened Species. IUCN. 2013. Retrieved 26 November 2013.old-form url
- Hennessey, A.B. (2011). "Species rank of Phibalura (flavirostris) boliviana based on plumage, soft part color, vocalizations, and seasonal movements". Wilson Journal of Ornithology. 123 (3): 454–458. doi:10.1676/10-190.1.
- Gill, Frank; Donsker, David, eds. (2018). "Cotingas, manakins, tityras, becards". World Bird List Version 8.2. International Ornithologists' Union. Retrieved 27 June 2018.
- Remsen, J.V. (2011). "Proposal (494): Elevate Phibalura flavirostris boliviana to species rank". South American Classification Committee of the American Ornithological Society. Retrieved 30 June 2018.
- Berv, J.S.; Prum, R.O. (2014). "A comprehensive multilocus phylogeny of the Neotropical cotingas (Cotingidae, Aves) with a comparative evolutionary analysis of breeding system and plumage dimorphism and a revised phylogenetic classification". Molecular Phylogenetics and Evolution. 81: 120–136. doi:10.1016/j.ympev.2014.09.001.
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