Creatures in Crisis
Photograph of Black-and-chestnut eagle (Spizaetus isidori), recorded as Endangered
Black-and-chestnut eagle (Spizaetus isidori). Image via Wikimedia Commons.

Endangered

Black-and-chestnut eagle

Spizaetus isidori

Black-and-chestnut eagle is a bird in the family Accipitridae (order Accipitriformes) — Spizaetus isidori, recorded as Endangered.

Status
Endangered
Scientific name
Spizaetus isidori
Taxonomy
Aves · Accipitriformes · Accipitridae · Spizaetus

The bird

It is a fairly large eagle and very large raptor at 60 to 80 cm (24 to 31 in) in total length with a wingspan of 147 to 180 cm (4 ft 10 in to 5 ft 11 in).

Range and habitat

It is found in humid montane forests, normally at elevations between 1,800 to 2,500 m (5,900 to 8,200 ft), in the Andes from northern Argentina, through Bolivia, Peru, Ecuador, Colombia, to Venezuela, with isolated populations in the Venezuelan Coastal Range, Serranía del Perijá and Sierra Nevada de Santa Marta. Widespread cutting of primary forest in foothills throughout the Andes is the primary cause of the precipitous decline of this species. Deforestation in the forests of the Andes is rampant as in much of the tropics.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Diet and breeding

Nest building is February and March, laying eggs in April and May and fledgling young by August and September. It builds a huge stick nest about 2 m (6.6 ft) across and 1 m (3.3 ft) deep.

At the nest area in some areas, adults primarily appeared to bring squirrels to feed their young. In Argentina, it was recorded that the female visited the nest more times and invested more time into nest building than males do.

In crisis

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.

Black-and-chestnut eagle is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Black-and-chestnut eagle, Wikidata item Q1260020. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Also in this catalog

Photograph of Vaquita (Phocoena sinus), recorded as Critically EndangeredCR

Vaquita

Phocoena sinus
Photograph of Javan rhinoceros (Rhinoceros sondaicus), recorded as Critically EndangeredCR

Javan rhinoceros

Rhinoceros sondaicus
Photograph of Sumatran orangutan (Pongo abelii), recorded as Critically EndangeredCR

Sumatran orangutan

Pongo abelii
Photograph of Axolotl (Ambystoma mexicanum), recorded as Critically EndangeredCR

Axolotl

Ambystoma mexicanum

Quick answers

What is Black-and-chestnut eagle?
Black-and-chestnut eagle is a bird in the family Accipitridae (order Accipitriformes) — Spizaetus isidori.
What is the conservation status of Black-and-chestnut eagle?
Endangered, as the IUCN category stored on Wikidata for Spizaetus isidori. Confirm the official assessment on iucnredlist.org.
Where does Black-and-chestnut eagle live?
It is found in humid montane forests, normally at elevations between 1,800 to 2,500 m (5,900 to 8,200 ft), in the Andes from northern Argentina, through Bolivia, Peru, Ecuador, Colombia, to Venezuela, with isolated populations in the Venezuelan Coastal Range, Serranía del Perijá and Sierra Nevada de Santa Marta.
Why is Black-and-chestnut eagle in crisis?
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.
Is this the IUCN Red List page for Spizaetus isidori?
No. This is a researched catalog account. The Red List is the assessment.
Is Black-and-chestnut eagle a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.