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SPECIES PROFILE
Harpy Eagle (Harpia harpyja)
Harpia
IUCN STATUS
Vulnerable
CONSERVATION STATUS
Vulnerable
CLASS
Aves
GEOGRAPHICAL RANGE
Southern Mexico through Central America to Bolivia and Brazil; in Mexico at the very northern limit of its range in southern Chiapas
DIET
Carnivore
HABITAT
Undisturbed primary lowland and foothill tropical rainforest with emergent trees for nesting; requires vast unbroken forest tracts
🔬 Classification
PHYLUM
Chordata
CLASS
Aves
ORDER
Accipitriformes
FAMILY
Accipitridae
GENUS
Harpia
📋 Description
SIZE
86–107 cm; wingspan 176–224 cm; females 6–9 kg, males 4–5 kg — the most powerful eagle in the Americas
COLORATION
White underparts; grey and black upperparts; distinctive pale grey head with a divided dark crest; black chest band; massive pale grey legs and talons
ADAPTATIONS
Talons larger than a grizzly bear's claws; can fly at 80 km/h through dense forest canopy; hunts by stealth and explosive bursts of speed
🌿 Ecology
HABITAT
Undisturbed primary lowland and foothill tropical rainforest with emergent trees for nesting; requires vast unbroken forest tracts
DIET
Carnivore
GEOGRAPHIC RANGE
Southern Mexico through Central America to Bolivia and Brazil; in Mexico at the very northern limit of its range in southern Chiapas
REPRODUCTION
Pairs nest every 2–3 years; single egg in a large platform nest in an emergent tree; chick takes 6 months to fledge; juvenile dependent for 2 years
DIET DETAILS
Sloths and monkeys are the primary prey; also large reptiles, kinkajous, porcupines, and large birds
⚠️ Threats & Conservation
PRIMARY THREATS
Deforestation of primary rainforest; shooting (mistaken for a threat to livestock and poultry); extremely low reproductive rate makes population recovery slow
💡 Interesting Facts
1
The Harpy Eagle has the largest talons of any living eagle — up to 13 cm — and a grip force estimated at over 42 kg per talon, capable of crushing the spine of a spider monkey.
2
Harpy Eagles are so forest-adapted that they can fly at full speed through dense rainforest canopy; they locate prey by hunting cooperatively with their mate, one flushing while the other strikes.
🔭 Sighting Guide
📍 BEST PLACES TO SIGHT
Montes Azules and Lacandon rainforest near Bonampak, Chiapas, is the only known Harpy Eagle location in Mexico
Reserva de la Biosfera Selva El Ocote near Ocozocuautla, Chiapas, has Harpy Eagle in remote primary forest
Sierra de los Cuchumatanes near the Chiapas-Guatemala border has Harpy Eagle records in primary montane forest
🗓️ BEST TIME TO SIGHT
Year-round in the Lacandon rainforest of Chiapas near Bonampak; extremely rare with sightings only a few times per year even by expert birders.
🎯 SIGHTING TIPS
Year-round but extremely rare and local. Primary rainforest of the Lacandon in Chiapas is Mexico's last known Harpy Eagle habitat; sightings are exceptional.
