CreatureData

Black-and-chestnut eagle

Spizaetus isidori (des Murs, 1845)

ENEndangeredbirds of prey

The black-and-chestnut eagle (Spizaetus isidori) is a species in the family Accipitridae, order Accipitriformes. Recorded adults weigh about 1.2 kg. Its IUCN Red List status is Endangered.

Black-and-chestnut eagle (Spizaetus isidori)
Photo: http://www.birdphotos.com · CC BY 3.0 · Wikimedia Commons

Quick facts about the black-and-chestnut eagle

Weight
1.2 kgsrc for Weight
Length
Not recorded
Wingspan
1.44 m – 1.66 msrc for Wingspan
Lifespan
Not recorded
Diet
Carnivoresrc for Diet
Main food
Not recorded
Habitat
forestsrc for Habitat
Young per litter or clutch
1src for Young per litter or clutch
Lifestyle
Aerialsrc for Lifestyle
Migration
Sedentarysrc for Migration
Conservation status
Endangered (IUCN)src for Conservation status
Countries on record
Not recorded

How big is the black-and-chestnut eagle?

BLACK-AND-CHESTNUT EAGLE · WINGSPAN 1.66 MADULT HUMAN · HEIGHT 1.7 M
At 1.66 m, the recorded maximum wingspan of the black-and-chestnut eagle is close to the height of an adult human (1.7 m, a fixed reference used for scale).

Where does the black-and-chestnut eagle live?

Not recorded

What is the black-and-chestnut eagle?

Quoted from WikipediaCC BY-SA 4.0

The black-and-chestnut eagle (Spizaetus isidori), also known as Isidor's eagle, is a large South American species of bird of prey in the family Accipitridae. It is often placed in the monotypic genus Oroaetus. However, recent genetic testing indicates that this species is fairly closely related to Spizaetus species and thus the species should be included in that genus. The black-and-chestnut eagle is a typical forest raptor, hunting primarily small to medium-sized mammals and birds and constructing a large nest in a tall tree. Unfortunately, the twin causes of habitat destruction and persecution have caused population declines and the black-and-chestnut eagle is considered to be an Endangered species by the IUCN.

From the Wikipedia article “Black-and-chestnut eagle” (en.wikipedia.org/w/index.php?title=Black-and-chestnut_eagle&oldid=1382365666), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the black-and-chestnut eagle endangered?

The black-and-chestnut eagle is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species. What the categories mean.

How is the black-and-chestnut eagle classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classAves
  4. orderAccipitriformes
  5. familyAccipitridae
  6. genusSpizaetus
  7. SpeciesSpizaetus isidori (des Murs, 1845)

Synonyms Falco isidori, Oroaetus isidori, Oroaetus isidori, Oroaetus isidori, Spizaetus devillei, Spizaetus isidori devillei, Spizaetus isidori isidori

Other names and names in other languages (48)
  • Black-and-chestnut hawk-eagleEnglish
  • Isidor's eagleEnglish
  • Isidor's eagleEnglish
  • عقاب الأسود والكستنائيArabic
  • Àguila d'IsidoreCatalan
  • àguila d'IsidoriCatalan
  • orel andskýCzech
  • eryr deuliwWelsh
  • AndesørnDanish
  • IsidoradlerGerman
  • KastanienbauchadlerGerman
  • anda agloEsperanto
  • Nigrabruna spizaetoEsperanto
  • Aguila PomaSpanish
  • Águila andinaSpanish
  • Águila azor pomaSpanish
  • Aguila CastañaSpanish
  • Águila crestadaSpanish
  • Aguila de CopeteSpanish
  • Águila de CopeteSpanish
  • Águila pomaSpanish
  • koidukotkasEstonian
  • rotkokotkaFinnish
  • Aigle d'IsidoreFrench
  • Aigle d’IsidoreFrench
  • Spizaète d'IsidoreFrench
  • andski oraoCroatian
  • inka sasHungarian
  • Aquila nerocastanaItalian
  • アカクロクマタカJapanese
  • niūrusis erelisLithuanian
  • AndeskuifarendDutch
  • andesskogørnNorwegian
  • andowikPolish
  • águia-bicolorPortuguese
  • águia-gavião-bicolorPortuguese
  • gavião-bicolorPortuguese
  • Траурный орёлRussian
  • Траурный хохлатый орёлRussian
  • orlovec andskýSlovak
  • Crno-kestenjasti jastrebasti oraoSerbian
  • andinsk örnSwedish
  • Isidores hökörnSwedish
  • Isidors hökörnSwedish
  • And Atmaca KartalıTurkish
  • орел ІсідориUkrainian
  • 黑栗雕Chinese
  • 黑栗鷹鵰Chinese

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

Relatives of the black-and-chestnut eagle

Other species in the same genus Spizaetus.

CompareBlack-and-chestnut eagle vs Ornate hawk-eagleBlack-and-chestnut eagle vs Black hawk-eagleBlack-and-chestnut eagle vs Black-and-white hawk-eagleBlack-and-chestnut eagle vs Spizaetus ornatusornatus

Common questions

Answered only where our data holds the answer.

How big is the black-and-chestnut eagle?

An adult black-and-chestnut eagle weighs 1.2 kg and has a wingspan of 1.44 m – 1.66 m, according to values recorded on Wikidata.

Is the black-and-chestnut eagle endangered?

The black-and-chestnut eagle is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.

What kind of animal is the black-and-chestnut eagle?

The black-and-chestnut eagle (Spizaetus isidori) belongs to the family Accipitridae in the order Accipitriformes.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Black-and-chestnut eagle (Spizaetus isidori). Retrieved from https://creaturedata.com/animals/black-and-chestnut-eagle

MLA

“Black-and-chestnut eagle (Spizaetus isidori).” CreatureData, 2026, https://creaturedata.com/animals/black-and-chestnut-eagle.

BibTeX
@misc{black_and_chestnut_eagle_2026,
  title = {Black-and-chestnut eagle (Spizaetus isidori)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/black-and-chestnut-eagle},
  note = {Data as of 2026-11-11}
}