Malgranda arao de Spix (Esperanto Wikipedia)

(2012) “A revised nomenclature and classification for family-group taxa of parrots (Psittaciformes)”, Zootaxa 3205, p. 26–40. doi:10.11646/zootaxa.3205.1.2.
(2008) “A Multilocus Molecular Phylogeny of the Parrots (Psittaciformes): Support for a Gondwanan Origin during the Cretaceous”, Mol Biol Evol 25 (10), p. 2141–2156. doi:10.1093/molbev/msn160.
(2012) “Phylogenetic relationships of the extinct Carolina Parakeet (Conuropsis carolinensis) inferred from DNA sequence Data”, The Auk 129 (2), p. 197–204. doi:10.1525/auk.2012.11259.
(March 1991) “The habitat and status of Spix's Macaw Cyanopsitta spixii”, Bird Conservation International 1 (1), p. 1–9. doi:10.1017/S0959270900000502.
(1990) “The Conservation of Spix's Macaw”, Oryx 24 (4), p. 224–228. doi:10.1017/s0030605300034943.
(1994) “Breeding the Spix's Macaw (Cyanopsitta spixii) at Loro Parque, Tenerife”, International Zoo Yearbook 33, p. 176–180. doi:10.1111/j.1748-1090.1994.tb03571.x.
(2018) “Which bird species have gone extinct? A novel quantitative classification approach”, Biological Conservation 227, p. 9–18. doi:10.1016/j.biocon.2018.08.014.

icmbio.gov.br (Global: low place; Esperanto: low place)

. Executive Summary of the National Action Plan for the Spix's Macaw Conservation. Arkivita el la originalo je 2020-06-10. Alirita 2020-06-10 . Arkivita kopio. Arkivita el la originalo je 2020-06-10. Alirita 2022-11-06 .

iucnredlist.org (Global: 88^th place; Esperanto: 56^th place)

(2019) “Cyanopsitta spixii ”, IUCN Red List of Threatened Species 2019, p. e.T22685533A153022606.

loroparque-fundacion.org (Global: low place; Esperanto: low place)

"News from the Loro Parque Fundación Parrot collection" Arkivigite je 2021-08-07 per la retarkivo Wayback Machine (2011) Cyanopsitta 99:11
"Loro Parque Fundación in Brazil to save the world’s rarest parrot" Arkivigite je 2020-06-18 per la retarkivo Wayback Machine (2010). Cyanopsitta 100:18

mapress.com (Global: 2,443^rd place; Esperanto: 1,169^th place)

(2012) “A revised nomenclature and classification for family-group taxa of parrots (Psittaciformes)”, Zootaxa 3205, p. 26–40. doi:10.11646/zootaxa.3205.1.2.

mongabay.com (Global: 3,236^th place; Esperanto: 657^th place)

news.mongabay.com

Szotek, Mark, "Sheikh goes from collector to conservationist in effort to save the world's rarest parrot", 10 September 2009.

nationalgeographic.com (Global: 344^th place; Esperanto: 165^th place)

Parrot Who Was Among Last of Its Kind, Said to Have Inspired 'Rio,' Dies (29 June 2014). Alirita 1 December 2021 .

parrots.org (Global: low place; Esperanto: low place)

. Revisiting Rio Star Presley: Is there hope for the Spix's Macaw?. parrots.org (2012).

rural21.com (Global: low place; Esperanto: low place)

Bertram, Wende Climate Change, Adaptation and Desertification Control. Arkivita el la originalo je 24 December 2013. Alirita 20 April 2010 . Arkivigite je 2013-12-24 per la retarkivo Wayback Machine Arkivita kopio. Arkivita el la originalo je 2013-12-24. Alirita 2020-06-10 .

scribd.com (Global: 482^nd place; Esperanto: 317^th place)

Jobling, James A. (2012). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. (ISBN 978-1-4081-2501-4). Arkivita el originalo je la 29a de Oktobro 2013.

smithsonianmag.com (Global: 503^rd place; Esperanto: 552^nd place)

pix's Macaw, Star of "Rio," Spotted in the Wild for the First Time in 15 Years. Alirita 8 July 2016 .

washingtonpost.com (Global: 34^th place; Esperanto: 88^th place)

Vastag, Brian, "Qatari sheik takes endangered bird species under his wing", 4 July 2011.

web.archive.org (Global: 1^st place; Esperanto: 1^st place)

Jobling, James A. (2012). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. (ISBN 978-1-4081-2501-4). Arkivita el originalo je la 29a de Oktobro 2013.
Species factsheet: Cyanopsitta spixii. BirdLife International (2008). Alirita 24 July 2008 . Arkivita kopio. Arkivita el la originalo je 2007-09-29. Alirita 2020-05-14 .
"News from the Loro Parque Fundación Parrot collection" Arkivigite je 2021-08-07 per la retarkivo Wayback Machine (2011) Cyanopsitta 99:11
. Executive Summary of the National Action Plan for the Spix's Macaw Conservation. Arkivita el la originalo je 2020-06-10. Alirita 2020-06-10 . Arkivita kopio. Arkivita el la originalo je 2020-06-10. Alirita 2022-11-06 .
Bertram, Wende Climate Change, Adaptation and Desertification Control. Arkivita el la originalo je 24 December 2013. Alirita 20 April 2010 . Arkivigite je 2013-12-24 per la retarkivo Wayback Machine Arkivita kopio. Arkivita el la originalo je 2013-12-24. Alirita 2020-06-10 .
"Loro Parque Fundación in Brazil to save the world’s rarest parrot" Arkivigite je 2020-06-18 per la retarkivo Wayback Machine (2010). Cyanopsitta 100:18
Jurong Bird Park now home to world's rarest blue macaws. Arkivita el la originalo je 2020-08-09. Alirita 2023-02-23 . Arkivita kopio. Arkivita el la originalo je 2020-08-09. Alirita 2023-02-23 .

Malgranda arao de Spix (Esperanto Wikipedia)

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beautyofbirds.com (Global: low place; Esperanto: 9,377th place)

birdlife.org (Global: 2,179th place; Esperanto: 302nd place)

bluemacaws.org (Global: low place; Esperanto: low place)

channelnewsasia.com (Global: 1,127th place; Esperanto: 8,732nd place)

doi.org (Global: 2nd place; Esperanto: 7th place)

icmbio.gov.br (Global: low place; Esperanto: low place)

iucnredlist.org (Global: 88th place; Esperanto: 56th place)

loroparque-fundacion.org (Global: low place; Esperanto: low place)

mapress.com (Global: 2,443rd place; Esperanto: 1,169th place)

mongabay.com (Global: 3,236th place; Esperanto: 657th place)

news.mongabay.com

nationalgeographic.com (Global: 344th place; Esperanto: 165th place)

parrots.org (Global: low place; Esperanto: low place)

rural21.com (Global: low place; Esperanto: low place)

scribd.com (Global: 482nd place; Esperanto: 317th place)

smithsonianmag.com (Global: 503rd place; Esperanto: 552nd place)

washingtonpost.com (Global: 34th place; Esperanto: 88th place)

web.archive.org (Global: 1st place; Esperanto: 1st place)

archive.org (Global: 6^th place; Esperanto: 25^th place)

beautyofbirds.com (Global: low place; Esperanto: 9,377^th place)

birdlife.org (Global: 2,179^th place; Esperanto: 302^nd place)

channelnewsasia.com (Global: 1,127^th place; Esperanto: 8,732^nd place)

doi.org (Global: 2^nd place; Esperanto: 7^th place)

iucnredlist.org (Global: 88^th place; Esperanto: 56^th place)

mapress.com (Global: 2,443^rd place; Esperanto: 1,169^th place)

mongabay.com (Global: 3,236^th place; Esperanto: 657^th place)

nationalgeographic.com (Global: 344^th place; Esperanto: 165^th place)

scribd.com (Global: 482^nd place; Esperanto: 317^th place)

smithsonianmag.com (Global: 503^rd place; Esperanto: 552^nd place)

washingtonpost.com (Global: 34^th place; Esperanto: 88^th place)

web.archive.org (Global: 1^st place; Esperanto: 1^st place)