• 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Near Threatened	B1ab(ii,iii,iv,v); C2a(i,ii); D1
2016	Near Threatened	B1b(i)
2012	Near Threatened	B1ab(i,ii,iii,v)
2008	Near Threatened	B1a+b(i,ii,iii,v)
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)	18,800 km2	medium
Area of Occupancy (breeding/resident)	13,448 km2
Number of locations	11-100	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1000-4000,4000 mature individuals	poor	estimated	2020
Population trend	decreasing	-	suspected	2016-2030
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Generation length	4.46 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: In 2007, there were an estimated 450-1,800 mature individuals in the Important Bird Areas (IBAs) of Costa Rica (J. Criado et al. in litt. 2007, Unión de Ornitólogos de Costa Rica in litt. 2011). These IBAs cover about 45% of the total range (per BirdLife International 2021). Based on continuous observational records (per eBird 2021), it is assumed that the species occurs at a similar density throughout the entire range. Therefore, the global population may have been between 1,000 and 4,000 mature individuals in 2007. Current data suggests that the population is undergoing a decline of up to 19% over three generations, so that the population is now likely considerably smaller than in 2007. However, the high number of observational records (eBird 2021) suggests that the population may in fact not be very small, and that the population size for 2007 may consequently have been an underestimate. In the absence of up-to-date data, it is assumed that the population size of 1,000-4,000 mature individuals still stands, with the best estimate being 4,000 mature individuals., and that in any case the population is below 10,000 mature individuals.
The population structure has not been investigated, but based on the continuous observational records throughout the range (eBird 2021) it is assumed that all individuals belong to the same subpopulation.

Trend justification: The population is inferred to be in decline owing to continued forest clearance. Tree cover loss is currently estimated at 7% across three generations (13.5 years) throughout the species' range (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). As the species is highly dependent on tall, mature forests and only occasionally venturing into secondary growth outside of forests (Collar 2020), the rate of population decline may be exacerbated by additional habitat degradation. Therefore, the population decline is here tentatively placed in the band 1-19% over three generations. In view of ongoing threats, declines are suspected to continue at the same rate into the future.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Costa Rica	extant	native	yes
Panama	extant	native	yes

Country/Territory	IBA Name
Costa Rica	Fila Costeña
Costa Rica	Los Santos, La Amistad Pacífico
Costa Rica	Sierpe Wetlands and Osa Peninsula
Costa Rica	Tárcoles, Carara and La Cangreja
Panama	El Chorogo-Palo Blanco
Panama	Quebrada Mellicita-Charco Azul

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

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Agro-industry grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
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, Ecosystem conversion
Residential & commercial development	Housing & urban areas	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

---

Recommended citation
BirdLife International (2024) Species factsheet: Baird's Trogon Trogon bairdii. Downloaded from https://datazone.birdlife.org/species/factsheet/bairds-trogon-trogon-bairdii on 23/11/2024.
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 23/11/2024.