References

Additional References

• Armani, G. C. (1985). Guide des Passereaux Granivores. Embérizinés. Société Nouvelle des Editions Boubée, Paris, France.
• Barrantes, G. (1994). Comparación del peso de diferentes tipos de plumas entre cinco especies de aves del páramo de Chirripó, Costa Rica. Rev. Biol. Trop. (Univ. Costa Rica) 41(3B): 901-903. In Spanish with English summary.
• Garrigues, R., and R. Dean (2007) The birds of Costa Rica: a field guide. Cornell University Press, Ithaca, New York.
• Hellmayr, C. E. (1938). Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. Ploceidae-Catamblyrhynchidae-Fringilidae. Field Museum of Natural History (Zoological Series) 13(11):1–662.
• Miller, A.H. (1941). Speciation in the avian genus Junco. University of California Publications in Zoology. 44(3): 173–434.
• Milá, B., McCormack, J.E., Castañeda, G., Wayne, R.K. and Smith, T.B. (2007). Recent postglacial range expansion drives the rapid diversification of a songbird lineage in the genus Junco. Proc. Royal Soc. London (Ser. B Biol. Sci.). 274: 2653–2660.
• Ridgway, R. (1901). The Birds of North and Middle America: a Descriptive Catalogue [...]. Part 1. Bulletin of the United States National Museum 50. Government Printing Office, Washington, DC, USA.
• Ridgway, R. (1901). The Birds of North and Middle America: A Descriptive Catalogue [...]. Part 1. Bulletin of the United States National Museum 50. Government Printing Office, Washington, DC, USA.
• Sassi, M. (1939). Die Vögel der österreichischen Costa-Rica-Expedition (Zweiter Teil). Temminckia 4: 135-222. In German.
• Stiles, F. G., and A. F. Skutch (1989). A Guide to the Birds of Costa Rica. Cornell University Press, Ithaca, NY, USA.
• Wetmore, A., R. F. Pasquier, and S. L. Olson (1984) The birds of the Republic of Panamá. Part 4. Smithsonian Miscellaneous Collections 150, Part 4. http://biodiversitylibrary.org/page/43196834

BirdLife International. 2015. Species factsheet: Volcano Junco Junco vulcani. Downloaded from BirdLife International on 11 May 2015.

Boucard, A. 1878. On birds collected in Costa Rica. Proceedings of the Zoological Society of London 46: 37-71.

Byers, C., J. Curson, and U. Olsson. 1995. Sparrows and buntings. Houghton Mifflin Company, New York, New York.

Freeman, B. G., M. N. Scholer, V. Ruiz-Gutierrez, and J. W. Fitzpatrick. 2018. Climate change causes upslope shifts and mountaintop extirpations in a tropical bird community. Proceedings of the National Academy of Sciences of the United States of America 115: 11982-11987. https://doi.org/10.1073/pnas.1804224115

Friis, G., P. Aleixandre, R. Rodriguez-Estrella, A.G. Navarro-Sigüenza, and B. Milá. 2016. Rapid postglacial diversification and long-term stasis within the songbird genus Junco: phylogeographic and phylogenomic evidence. Molecular Ecology 25: 6175–6195. https://doi.org/10.1111/mec.13911

Klicka, J., F. K. Barker, K. J. Burns, S. M. Lanyon, I.J . Lovette, J. A. Chaves, and R. W. Bryson, Jr. 2014. A comprehensive multilocus assessment of sparrow (Aves: Passerellidae) relationships. Molecular Phylogenetics and Evolution 77: 177-182. https://doi.org/10.1016/j.ympev.2014.04.025

Milá, B., J. E. McCormack, G. Castañeda, R. K. Wayne, and T. B. Smith. 2007. Recent postglacial range expansion drives the rapid diversification of a songbird lineage in the genus Junco. Proceedings of the Royal Society B 274: 2653–2660. https://doi.org/10.1098/rspb.2007.0852

Parker, T. A., III, D. F. Stotz, and J. W. Fitzpatrick. 1996. Ecological and distributional databases. Pages 113-436 in D. F. Stotz, J. W. Fitzpatrick, T. A. Parker III, and D. K. Moskovits, Neotropical birds: ecology and conservation. University of Chicago Press, Chicago, Illinois.

Ridgely, R. S., and J. A. Gwynne. 1989. A guide to the birds of Panama with Costa Rica, Nicaragua, and Honduras. Princeton University Press, Princeton, New Jersey.

Ridgway, R. 1901. The birds of North and Middle America. Part I. United States National Museum Bulletin 50, part 1.

Slud, P. 1964. The birds of Costa Rica. Distribution and ecology. Bulletin of the American Museum of Natural History 128. http://digitallibrary.amnh.org/dspace/bitstream/2246/1120/1/B128a01.pdf

Stiles, F. G., and A. F. Skutch. 1989. A guide to the birds of Costa Rica. Cornell University Press, Ithaca, New York.

Wetmore, A., R. F. Pasquier, and S. L. Olson. 1984. The birds of the Republic of Panamá. Part 4. Smithsonian Miscellaneous Collections 150, Part 4.