Data Zone
Justification of Red List category
This species has a very 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 has not been quantified, but it is not believed 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 justification
The global population size has not been quantified, but this species is described as 'uncommon and patchily distributed' (Stotz et al. 1996).
Trend justification
The population trend has not been estimated directly. Tree cover within the range has been lost at a rate of 4% over three generations (15 years; Global Forest Watch 2020). Population declines may additionally be exacerbated by habitat degradation and thus exceed the rate of tree cover change alone. Even though the species seems to be strictly forest-dependent (Snow 2020), it is unlikely that the rate of population decline exceeds 10% over three generations.
Snowornis subalaris is locally distributed on the east slopes of the Andes in north-west South America (del Hoyo et al. 2004, Snow 2020). It is rare to uncommon in south Colombia and Ecuador (del Hoyo et al. 2004, Restall et al. 2006). In Peru, it was locally numerous in the south of Madre de Dios in the 1980s, and is also found in Ucayalo, San Martín and Pasco (del Hoyo et al. 2004, Harvey et al. 2011, M. Harvey in litt. 2020).
The species inhabits humid forests of the Andean foothills. It occurs between 500-1,400 m elevation (del Hoyo et al. 2004, Snow 2020).
The only threat known to the species is the loss and fragmentation of its forest habitat.
Conservation Actions Underway
None are known.
Conservation Actions Proposed
Expand the protected area network to effectively protect IBAs. Effectively resource and manage existing and new protected areas, utilising emerging opportunities to finance protected area management with the joint aims of reducing carbon emissions and maximizing biodiversity conservation. Conservation on private lands, through expanding market pressures for sound land management and preventing forest clearance on lands unsuitable for agriculture, is also essential (Soares-Filho et al. 2006).
23-24 cm. Medium-sized, green cotinga. Olive-green above, with grey rump and tail; paler olive below, fading to grey on the belly. Male has black feathers on crown.
Text account compilers
Hermes, C.
Contributors
Butchart, S., Ekstrom, J., Harvey, M., Khwaja, N. & Symes, A.
Recommended citation
BirdLife International (2024) Species factsheet: Grey-tailed Piha Snowornis subalaris. Downloaded from
https://datazone.birdlife.org/species/factsheet/grey-tailed-piha-snowornis-subalaris on 25/11/2024.
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 25/11/2024.