NT
Vitelline Warbler Setophaga vitellina



Taxonomy

Taxonomic note
Setophaga vitellina (del Hoyo and Collar 2016) was previously placed in the genus Dendroica following AOU (1998 & supplements); Sibley and Monroe (1990, 1993); Stotz et al. (1996).

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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2020 Near Threatened B1b(iii); D2
2016 Near Threatened D1+2
2012 Near Threatened D1+2
2008 Near Threatened D1; D2
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Low
Land mass type Average mass 7 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 15,100 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing poor 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 - - -
Largest subpopulations 100 - - -

Population justification: The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. 1996). The Cayman Brac subpopulation was estimated in March 2019 at 7,808 individuals (±1,522) and the Grand Cayman population was scheduled to be surveyed in March 2020 (Haakonsson 2020).

Trend justification: There are no data on population trends; however, the species is thought to be declining as a result of habitat degradation. Whilst subspecies crawfordi is highly abundant in the Sister Islands, the species is increasingly clumped in Grand Cayman owing largely to habitat destruction and degradation.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Cayman Islands (to UK) N Extant Yes
Honduras N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Cayman Islands (to UK) Booby Pond Nature Reserve
Cayman Islands (to UK) Sparrowhawk Hill
Cayman Islands (to UK) Bluff Forest
Cayman Islands (to UK) Mastic Reserve
Cayman Islands (to UK) Botanic Park and Salina Reserve
Cayman Islands (to UK) Frank Sound Forest
Cayman Islands (to UK) Eastern Dry Forest
Cayman Islands (to UK) Franklin's Forest
Honduras Swan Islands

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable resident
Shrubland Subtropical/Tropical Dry major resident
Altitude   Occasional altitudinal limits  

Threats & impact
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
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation
Human intrusions & disturbance War, civil unrest & military exercises Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Unknown Past Impact
Stresses
Species disturbance, Ecosystem degradation
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Future Majority (50-90%) Slow, Significant Declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Future Majority (50-90%) Slow, Significant Declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2021) Species factsheet: Setophaga vitellina. Downloaded from http://www.birdlife.org on 22/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/01/2021.