Spanish imperial eagle: complete guide to spotting in Monfragüe

Few sights compare to the majestic flight of the Spanish imperial eagle over Monfragüe’s ochre ridges. Endemic to the Iberian Peninsula, Aquila adalberti is a symbol of wild grandeur —a living heir of ancient woodlands.

Technical data

Scientific name: Aquila adalberti
Family: Accipitridae
Wingspan: 180–220 cm
Length: 72–85 cm
Weight: 2.5–4.5 kg
Status: Endangered but recovering. Endemic to Iberia.

Visual identification

Adults are dark chocolate brown with distinct white “shoulder patches” visible in flight. Pale golden crown and nape. Juveniles are lighter and lack the white shoulders —they darken with age.

Vocalisation

Generally silent. During breeding season, high-pitched “klee-klee” calls may be heard, especially near nests or in territorial disputes.

Behaviour

Solitary and noble, often seen soaring slowly in wide circles. They breed in secluded areas and glide effortlessly over woodland edges and open pasture.

Habitat in Monfragüe

This national park is one of the strongholds of the species. Prefers Mediterranean woodland mosaics with clearings and open dehesa. Ridges and ancient holm oaks provide perfect nesting spots.

Breeding

Starts in late winter. Two eggs are laid; usually only one chick survives. Massive stick nests reused each year. Summer is when fledglings are learning to fly —a treat to observe.

Diet

Primarily wild rabbits. Opportunistic with small birds, reptiles or carrion. Scarcity drives more varied hunting behaviour.

Best spots and times for observation (summer)

Castillo de Monfragüe: Dawn flights visible from the castle ruins.
Salto del Gitano viewpoint: Late afternoon glides are frequent.
Near Las Corchuelas lodge: Watch them patrol their territory from shady trails.

Summer means thermals, fledglings in the air, and long clear days for uninterrupted observation.