| Citation |
BirdLife International 2018. Ketupa flavipes. The IUCN Red List of Threatened Species 2018: e.T22689017A130157883. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T22689017A130157883.en. Downloaded on 25 November 2019. |
Description |
JUSTIFICATION
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 threshold for Vulnerable under the population trend criterion (>30% decline over ten years of 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.
DESCRIPTION
The global population size has not been quantified. However, the species is reported to be very rare and local to uncommon in the west of its range but possibly not uncommon locally elsewhere (del Hoyo et al. 1999). National population sizes have been estimated at < c.100 breeding pairs in China and < c.100 breeding pairs in Taiwan (Brazil 2009).
Trend Justification:
The species is tentatively assessed as being in decline due to habitat loss per Tracewski et al. (2016). |
