| 2009 IUCN Red List Category (as evaluated by BirdLife International - the official Red List Authority for birds for IUCN): Least Concern Justification 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. Family/Sub-family Apodidae Species name author (Horsfield & Moore, 1854) Taxonomic source(s) Sibley and Monroe (1990, 1993) Taxonomic note Collocalia linchi (Sibley and Monroe 1990, 1993) was split into C. linchi and C. dodgei by Moyle et al. (2008) but this treatment is not followed by the BirdLife Taxonomic Working Group, because their study fails to take account of the other taxa in the linchi complex, namely C. l. ripleyi from Sumatra and C. l. dedii from Bali, and relied on a small sample size. All four subspecies of C. linchi differ diagnosably in size, so no change to their taxonomic treatment is warranted until the complex is reviewed as a whole.
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