This discussion was first published as part of the 2016 Red List update. At the time a decision regarding its status was pended, but to enable potential reassessment of this species as part of the 2017 Red List update this post remained open and the date of posting was updated.
BirdLife species factsheet for Shelley’s Crimson-wing: http://www.birdlife.org/datazone/species/factsheet/22719374
Cryptospiza shelleyi is known from several localities in the mountains of the Albertine Rift, in Democratic Republic of Congo, Rwanda, Burundi, Uganda, as well as the Virunga Mountains (2,200-3,000 m) on the border between DRC, Rwanda and Uganda.
It is currently classified as Vulnerable as it has a small, declining population within which all subpopulations are very small.
It is generally rare (Butynski et al. 1997), and reporting rates have been dropping (S. Cichon, M. McQuillan and E. Meyjes in litt. 2016). Declines in the species’s population are most likely related to forest degradation and destruction (Catterall 1992), which are prevalent throughout this species’s range. Its population size had previously been estimated to be in the range of 2,500-4,999 mature individuals, but given the decline in reporting rate and a lack of recent sightings this is now likely to be an overestimate (S. Cichon, M. McQuillan and E. Meyjes in litt. 2016). With a revised population size in the range of 1,000-2,500 mature individuals which is inferred to be declining, and if all subpopulations are assumed to be <250 mature individuals this species is likely to qualify as Endangered under criterion C2a(i).
We welcome any comments on this proposed uplisting.
Butynski, T. M.; Agenonga, U.; Ndera, B.; Hart, J. F. 1997. Rediscovery of the Congo Bay (Itombwe) Owl Phodilus prigoginei. Bulletin of the African Bird Club 4(1): 32-35.
Catterall, M. J. 1992. Conservation priorities for the Albertine Rift Endemic Bird Area. MSc Thesis, Wye College, University of London.