• Summary
• Text account
• Data table and detailed info
• Range map
• Resources

Justification of Red List category
This species has an extremely large range, and hence does not 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 extremely 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 numbers 20,000,000 mature individuals (Partners in Flight 2020).

Trend justification
The population is suspected to be in slow decline (Partners in Flight 2020), which is thought to be caused by low levels of habitat loss within the range (Proudfoot et al. 2020). Tree cover within the range is lost at c.7% over ten years (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). As the species is not strictly forest-dependent but also occurs in shrubby and open habitats (Proudfoot et al. 2020), population declines are unlikely to exceed 10% over ten years.

Threats to the species include habitat loss and degradation, as well as localised trapping pressure (Proudfoot et al. 2020).

Text account compilers
Hermes, C.

Contributors
Butchart, S. & Ekstrom, J.

---

Recommended citation
BirdLife International (2025) Species factsheet: Ferruginous Pygmy-owl Glaucidium brasilianum. Downloaded from https://datazone.birdlife.org/species/factsheet/ferruginous-pygmy-owl-glaucidium-brasilianum on 15/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 15/01/2025.