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

Taxonomic note

Cyanocorax formosus (del Hoyo and Collar 2016) was previously listed as Calocitta formosa.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2020	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	Medium
Land mass type		Average mass	210 g

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	746,000	medium
Number of locations		-
Severely Fragmented		-

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals	500000-4999999	poor	estimated	2016
Population trend	Stable		suspected	-
Decline (3 years/1 generation past)		-	-	-
Decline (5 years/1 generation past)		-	-	-
Decline (10 years/1 generation past)		-	-	-
Decline (10 years/3 generation future)		-	-	-
Decline (10 years/3 generation past and future)		-	-	-
Number of subpopulations		-	-	-
Percentage in largest subpopulation		-	-	-
Generation length (yrs)	7.5	-	-	-

Population justification: The global population is estimated to number 500,000-4,999,999 mature individuals (Partners in Flight 2019).

Trend justification: The population is thought to be stable (Partners in Flight 2019).

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
Costa Rica	N	Extant	Yes
El Salvador	N	Extant	Yes
Guatemala	N	Extant	Yes
Honduras	N	Extant	Yes
Mexico	N	Extant	Yes
Nicaragua	N	Extant	Yes

Country/Territory	IBA Name
Guatemala	Atitlan
Guatemala	Cuilco
Guatemala	Sierra de las Minas - Motagua
Guatemala	Tacana - Tajumulco
Guatemala	Santiaguito Volcano
Costa Rica	Guanacaste lowlands
Costa Rica	Nicoya Peninsula
Nicaragua	Apante Hill
Nicaragua	Chocoyero - El Brujo - Montibelli and adjacent landscape
Nicaragua	Momotombo Volcanic Complex
Nicaragua	San Cristóbal-Casita-Chonco Volcanic Complex
Nicaragua	Estero Real Delta and Apacunca Plains
Nicaragua	Domitila
Nicaragua	Juan Venado Island
Nicaragua	Tisma Lagoon
Nicaragua	Escalante River-Chococente-Tecomapa
Nicaragua	Quirragua Mountains and adjacent landscape
Nicaragua	Maderas Volcano
Nicaragua	Dipilto-Jalapa Mountain Range
Nicaragua	Los Guatuzos
Nicaragua	Miraflor
Nicaragua	Mombacho Volcano
Nicaragua	Musun Hill
Guatemala	Lake Güija
Guatemala	Monterrico - Río La Paz
El Salvador	Cinquera Forest
El Salvador	El Imposible Forest
El Salvador	Deininger
El Salvador	Jiquilisco and Jaltepeque
El Salvador	La Joya
El Salvador	Lake Olomega
El Salvador	Los Cóbanos
El Salvador	Río Sapo/Perquín
El Salvador	San Diego and La Barra
El Salvador	The Balsam Range
El Salvador	Conchagua Volcano
El Salvador	San Miguel Volcano/El Jocotal Lagoon
El Salvador	San Salvador Volcano
El Salvador	Barra de Santiago
El Salvador	San Vicente Volcano
El Salvador	Cerrón Grande
El Salvador	Jucuarán Hills
El Salvador	La Unión Bay
El Salvador	The Volcans and San Marcelino
Mexico	Chamela - Cuitzmala
Mexico	La Encrucijada
Mexico	La Sepultura
Mexico	Laguna de Chacahua - Pastoría
Mexico	Laguna de Manialtepec
Mexico	Laguna Pampa El Cabildo
Mexico	Lagunas Costeras de Guerrero
Mexico	Valle de Tehuacán - Cuicatlán
Mexico	Presa Cajón de Peñas
Mexico	Tancítaro
Honduras	La Botija
Honduras	El Jicarito
Honduras	Chismuyo/Coyolito
Mexico	Istmo de Tehuantepec - Mar Muerto
Mexico	Cuenca Baja del Río Papagayo

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Arable Land	suitable	resident
Artificial/Terrestrial	Plantations	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Shrubland	Subtropical/Tropical Dry	major	resident
Altitude	0 - 1500 m	Occasional altitudinal limits

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Pets/display animals, horticulture	-	-		International	Non-trivial	Recent

---

Recommended citation
BirdLife International (2023) Species factsheet: Cyanocorax formosus. Downloaded from http://www.birdlife.org on 26/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/03/2023.