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NL·0214AnimalsAccipitridaeBird2,768 field observations
Spanish imperial eagleNL·0214
Plate 1 of 8. (c) Oscar Valencoso - Salomé Planas, some rights reserved (CC BY-NC) · via iNaturalist

Herbarium of the Nature Library

Name
Aquila adalberti
Family
Accipitridae
Native to
Endemic to the Iberian Peninsula (central and southwestern Spain, southern Portugal); has occasionally bred in Morocco
Habitat
Mediterranean woodland, Dehesa, Wetland edge
IUCN VU · Vulnerable

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Spanish Eagle

Live sightings near you, the range map, bar charts of when it is seen, and Macaulay Library photos and recordings.

Spanish imperial eagle

Aquila adalberti

Also calledÁguila imperial ibérica (Spanish) · Águia-imperial-ibérica (Portuguese) · Spanischer Kaiseradler (German) · Aigle ibérique (French) · Adalbert's eagle (English)

A dark, powerful eagle with brilliant white shoulder patches, found only in the Iberian Peninsula. Rescued from near-extinction in the 1970s, it has become one of Europe's great conservation recoveries, though it remains Vulnerable.

The Spanish imperial eagle, Spanish eagle, Iberian imperial eagle or Adalbert's eagle is a species of eagle native to the Iberian Peninsula. The binomial commemorates Prince Adalbert of Bavaria. Due to its distinct "epaulettes", old literature often referred to this species as the white-shouldered eagle. Wikipedia

§1

What it can do

  1. iSpecialises on rabbits, and its breeding success tracks rabbit numbers
  2. iiBuilds large stick nests in cork oaks and pines
  3. iiiAdults hold territories year-round
  4. ivYoung birds wander widely across Iberia before settling
§2

In the field

Field marks

  • aVery dark brown body with a pale golden-buff crown and nape
  • bBold white patches on the shoulders and the leading edge of the wing
  • cGrey tail with a broad dark terminal band
  • dJuveniles pale tawny-buff with dark flight feathers
Voice
A deep, barking 'owk-owk-owk'.
Not to be confused with
Eastern imperial eagle (eastern Europe, Central Asia) has smaller white shoulder patches and no white leading edge. Golden eagle has a longer tail and lacks white shoulders. Juveniles resemble young eastern imperial eagles but are unstreaked.
Where to see it
Doñana National Park, Monfragüe, Sierra de Andújar and Montes de Toledo in Spain; Alentejo in Portugal.
When
Resident
§3

Listen

Looking for field recordings…

§4

Life & habits

Diet
Mainly European rabbits; also hares, partridges, pigeons, ducks and carrion
Habitat
Open oak woodland (dehesa), Mediterranean scrub, pine forest near marshes
Size
72–85 cm; wingspan 177–220 cm; 2.5–4.8 kg

Pairs soar together over their territory with undulating display flights in late winter.

§5

Where it lives

Recorded sightings

—

geo-referenced records in GBIF, from museums, herbaria and field observers.

Native range

Endemic to the Iberian Peninsula (central and southwestern Spain, southern Portugal); has occasionally bred in Morocco

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

§6

In the old herbals & bestiaries

No plate in the Source Library names this exact species, so these show its closest relatives as the old naturalists drew them: same genus, or the same kind of animal. Click a plate to read the page it came from, with translation.

§7

In the stacks

Searching the stacks…

Every page naming Aquila adalberti in the Biodiversity Heritage Library →

§8

Marginalia

It was named in 1861 by the German ornithologist Christian Ludwig Brehm in honour of Prince Adalbert of Bavaria, and it became a symbol of Spanish conservation through the protection of Doñana.

Curiosity

Electrocution on power lines and illegal poison baits were its main killers; retrofitting dangerous pylons has been central to its recovery from a few dozen pairs.

§9

Kinship

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›subphylumVertebrata
  4. ›classAves
  5. ›orderAccipitriformes
  6. ›familyAccipitridae
  7. ›subfamilyAquilinae
  8. ›genusAquila
Open its branch on the Wheel of Life →

Fact-checked: 2 corrections made to this sheet. Photographs: iNaturalist contributors under the licences shown. Records: GBIF.org. Historical plates: Source Library (CC BY-SA 4.0; originals public domain). Summary text: Nature Library editors and Wikipedia (CC BY-SA). Medicinal and edibility notes are historical and educational, not advice. iNaturalist taxon 5081.