LC
Long-billed Hermit Phaethornis longirostris



Taxonomy

Taxonomic note

Phaethornis longirostris, P. mexicanus and P. baroni (del Hoyo and Collar 2014) were previously lumped as P. longirostris following SACC (2005), and before then were also lumped with P. superciliosus as P. superciliosus 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.

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

Red List history
Year Category Criteria
2022 Least Concern
2016 Least Concern
2014 Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 1,650,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected 2016-2026
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 2.33 years - - -

Population justification: The global population size is unknown given recent taxonomic splits.

Trend justification: The population trend has not been investigated, but declines are suspected as a consequence of the loss and degradation of forested habitat. Tree cover within the range is lost at a rate of 8% over ten years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). As the species is not strictly forest-dependent but also occurs in secondary growth, edges and plantations (del Hoyo et al. 2020), the rate of population decline is unlikely to exceed the rate of tree cover loss. Tentatively, declines are here placed in the band 1-19% over ten years.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Belize extant native yes
Colombia extant native yes
Costa Rica extant native yes
Guatemala extant native yes
Honduras extant native yes
Mexico extant native yes
Nicaragua extant native yes
Panama extant native yes
Venezuela extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Altitude 0 - 2500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Phaethornis longirostris. Downloaded from https://datazone.birdlife.org/species/factsheet/long-billed-hermit-phaethornis-longirostris on 02/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 02/03/2024.