LC
Dayak Blue Flycatcher Cyornis montanus



Family: Muscicapidae (Old World Flycatchers and Chats)

Authority: Robinson & Kinnear, 1928

Red List Category:


Justification of Red List category
This species has a relatively 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 not quantified but is not thought to 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 size: unknown

Population trend: decreasing

Extent of occurrence (breeding/resident): 387,000 km2

Country endemic: no


Recommended citation
BirdLife International (2025) Species factsheet: Dayak Blue Flycatcher Cyornis montanus. Downloaded from https://datazone.birdlife.org/species/factsheet/dayak-blue-flycatcher-cyornis-montanus on 03/01/2025.
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 03/01/2025.