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

Taxonomic note

Todiramphus cinnamominus, T. pelewensis and T. reichenbachii (del Hoyo and Collar 2014) were previously lumped as T. cinnamominus following Sibley and Monroe (1990, 1993).

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
D	D	D1

Red List history

Year	Category	Criteria
2024	Extinct in the Wild
2016	Extinct in the Wild
2014	Extinct in the Wild
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Migratory status	not a migrant	Forest dependency	medium
Land-mass type		Average mass	58 g

	Estimate	Data quality
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	0 mature individuals	good	estimated	-
Population trend		-	-	-
Generation length	3.51 years	-	-	-

Population justification: Though formerly common and widespread, predation by the introduced brown tree snake Boiga irregularis quickly drove the population to 150 pairs in 1976. The last 29 known wild birds were taken into captivity in 1984-86, though a population of unknown size (but presumably very small) persisted in the wild until 1988 when the last individual was seen (Wiles et al. 2003).

Trend justification: This species is considered extinct in the wild and declined rapidly as a result of predation by brown tree snakes which were introduced in the 1940s and became established throughout Guam by 1970 (Wiles et al. 2003). Once widespread and common, it numbered 150 pairs in 1976 and the last individual was seen in 1988 after the 29 known wild birds were taken into captivity in 1984-86 (Wiles et al. 2003).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Guam (to USA)	extinct	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Rural Gardens	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 300 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Boiga irregularis	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Whole (>90%)		Rapid Declines		Past Impact
		Stresses Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Species mortality

Purpose	Scale
Pets/display animals, horticulture	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Guam Kingfisher Todiramphus cinnamominus. Downloaded from https://datazone.birdlife.org/species/factsheet/guam-kingfisher-todiramphus-cinnamominus on 22/12/2024.
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 22/12/2024.