• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2017	Near Threatened	A3cd+4cd
2016	Near Threatened	A2cd+3cd+4cd
2012	Near Threatened	A2cd+3cd+4cd
2008	Near Threatened	A2c,d; A3c,d; A4c,d
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Near Threatened
1988	Threatened

Migratory status	not a migrant	Forest dependency	high
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	15,600,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	poor	suspected	1998-2008
Rate of change over the past 10 years/3 generations (longer of the two periods)	10-20%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	25-29%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	25-29%	-	-	-
Generation length	18 years	-	-	-

Population justification: The global population size has not been estimated, but it has been described as sparsely distributed in the south of its range (Bierregaard and Kirwan 2017), and the population density of Tikal National Park in Guatemala has been estimated at 2-4 individuals per 100 km² (Whitacre et al. 2012).

Trend justification: Deforestation rates presented by Tracewski et al. (2016) suggest that the species has lost c.16.5% of suitable habitat over the past 3 generations (54 years). However, the species is suspected to lose 29.8-47% of suitable habitat within its distribution over three generations based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011), though the rate of loss outside Amazonia is likely to be lower (A. Lees in litt. 2011), and so the species is therefore suspected to undergo an ongoing and future decline of 25-29% over three generations.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Argentina	extant	native		yes
Belize	extant	native		yes
Bolivia	extant	native		yes
Brazil	extant	native		yes
Colombia	extant	native		yes
Costa Rica	extant	native	yes
Ecuador	extant	native		yes
French Guiana	extant	native		yes
Guatemala	extant	native		yes
Guyana	extant	native		yes
Honduras	extant	native		yes
Mexico	extant	native	yes
Nicaragua	extant	native		yes
Panama	extant	native		yes
Paraguay	extant	native	yes
Peru	extant	native		yes
Suriname	extant	native		yes
Venezuela	extant	native	yes

Country/Territory	IBA Name
Bolivia	Noel Kempff Mercado
Bolivia	Reserva de Inmovilización Iténez
Brazil	Baixo Rio Xingu
Brazil	Caxiuanã / Portel
Brazil	Cristalino / Serra do Cachimbo
Brazil	Serra dos Carajás
Colombia	Parque Nacional Natural Ensenada de Utría
Colombia	Serranía de los Churumbelos
Ecuador	Bajo Napo
Ecuador	Gran Yasuní
Ecuador	Reserva de Producción Faunística Cuyabeno
Ecuador	Territorio Achuar
French Guiana	Nouragues
French Guiana	Parc Amazonien de Guyane et Saül
French Guiana	Trinité
Nicaragua	Bosawas
Nicaragua	Indio Maíz
Nicaragua	Prinzapolka/Alamikamba Rivers
Nicaragua	San Juan River - La Inmaculada Concepcion de Maria
Panama	Darién National Park
Peru	Bahuaja-Sonene
Peru	Manu
Peru	Parque Nacional Cordillera Azul
Peru	Reserva Nacional Pacaya Samiria
Suriname	Bakhuys mountains
Suriname	Centraal Suriname Nature Reserve (CSNR)
Suriname	Kabalebo / Arapahu
Venezuela	Henri Pittier National Park (Parque Nacional Henri Pittier IBA)
Venezuela	Parque Nacional Canaima
Venezuela	Parque Nacional Parima-Tapirapecó
Venezuela	Reserva Forestal Imataca
Venezuela	Zona Protectora San Rafael de Guasare

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 1200 m	Occasional altitudinal limits	(max) 1600 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation
Invasive and other problematic species, genes & diseases	Problematic native species/diseases	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Competition

Purpose	Scale
Food - human	subsistence, national
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Crested Eagle Morphnus guianensis. Downloaded from https://datazone.birdlife.org/species/factsheet/crested-eagle-morphnus-guianensis on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.