FeatherScan logo
FeatherScan
Overview
Spanish imperial eagle

Spanish imperial eagle

Wikipedia

The Spanish imperial eagle, Spanish 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.

Loading map...

Distribution

Region

Iberian Peninsula

Typical Environment

Occurs mainly in central and southwestern Spain with a smaller but growing presence in Portugal. Prefers open Mediterranean woodlands and dehesa landscapes interspersed with scrub, pasture, and wetlands. Nests on tall trees such as pines or eucalyptus and hunts over open fields, marsh edges, and lightly wooded hills. Avoids dense forests and very urbanized areas but tolerates low-intensity agricultural mosaics when prey is abundant.

Altitude Range

Sea level to 1800 m

Climate Zone

Temperate

Characteristics

Size72–85 cm
Wing Span180–220 cm
Male Weight3 kg
Female Weight4 kg
Life Expectancy20 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

Also called the Iberian or Adalbert's eagle, it is confined to the Iberian Peninsula and was once considered a subspecies of the eastern imperial eagle. It shows striking white 'epaulettes' on the shoulders of adults. The species rebounded after intensive conservation, including retrofitting power lines to prevent electrocution and protecting key nesting sites. Its fortunes are closely tied to European rabbit populations, a primary prey that has suffered disease-driven declines.

Gallery

Bird photo
Bird photo
Bird photo
A captive subadult Spanish imperial eagle

A captive subadult Spanish imperial eagle

Adult Iberian imperial eagle

Adult Iberian imperial eagle

A Iberian imperial eagle on its nest tending to its eaglet.

A Iberian imperial eagle on its nest tending to its eaglet.

 Egg, Muséum de Toulouse

Egg, Muséum de Toulouse

Juvenile Iberian imperial eagle in flight

Juvenile Iberian imperial eagle in flight

Behaviour

Temperament

solitary and territorial

Flight Pattern

soaring glider

Social Behavior

Primarily monogamous, pairs maintain large territories and reuse substantial stick nests year after year. Nests are built high in large trees and typically contain 1–3 eggs, with strong nest defense during the breeding season. Juveniles disperse widely before settling to breed.

Migratory Pattern

Resident

Song Description

Generally quiet, but near the nest gives sharp, repeated yelps and harsh, barking calls. Vocal activity increases during courtship and territorial disputes, carrying over long distances in open country.

Identification

Leg Coloryellow
Eye Coloramber-yellow

Plumage

Adults are dark chocolate-brown with contrasting white shoulder patches forming bold 'epaulettes' and a pale tawny nape; the leading edge of the wing shows white in flight. Juveniles are mostly sandy-buff to rufous with darker flight feathers and lack the full white epaulettes. Tail is dark with subtle barring.

Feeding Habits

Diet

Heavily reliant on European rabbits, taking both adults and juveniles. Also preys on waterfowl, partridges, pigeons, corvids, and small to medium-sized mammals, and will scavenge carrion when available. Diet composition shifts when rabbit numbers crash due to disease, with more birds and alternative mammals taken.

Preferred Environment

Hunts over open dehesa pasture, edges of Mediterranean woodland, wetlands such as marsh margins, and low-intensity farmland. Uses elevated perches for scanning and makes low, direct attacks across open ground.

Population

Total Known PopulationApproximately 1,500–2,500 mature individuals

Similar Bird Species