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

Justification of Red List category
Although this species may have a restricted range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population is suspected to number 50,000-499,999 mature individuals (Partners in Flight 2022). The species is described as uncommon to fairly common or locally abundant over most of its range (del Hoyo et al. 1999, Schulenberg and Sedgwick 2020).

Trend justification
The population trend has not been investigated, but due to its dependence on forest declines are suspected as a consequence of logging and habitat conversion. Tree cover loss within the range is very low (2% over ten years; Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Population declines are therefore suspected to be similarly low; they are here tentatively placed in the band 1-9% over ten years.

Text account compilers
Hermes, C.

Contributors
Butchart, S. & Ekstrom, J.

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Recommended citation
BirdLife International (2024) Species factsheet: Black-bellied Hummingbird Eupherusa nigriventris. Downloaded from https://datazone.birdlife.org/species/factsheet/black-bellied-hummingbird-eupherusa-nigriventris on 23/12/2024.
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 23/12/2024.