Cacatua, Vieillot, 1817

O’Connell, Darren P., Kelly, David J., Kelly, Seán B. A., Analuddin, Kangkuso, Karya, Adi, Marples, Nicola M., Rheindt, Frank E. & Martin, Thomas E., 2020, An assessment of the avifauna of the Wakatobi Islands, South-east Sulawesi, Indonesia: species recorded and taxonomic considerations, Raffles Bulletin of Zoology 68, pp. 574-587 : 578

Yellow-crested Cockatoo Cacatua sulphurea paulandrewi

CR. This Critically Endangered species is under serious threat throughout its range, primarily due to the cage-bird trade ( Collar & Marsden, 2014; Eaton et al., 2015; Harris et al., 2017; IUCN, 2019). It was recorded across the main Wakatobi Islands by Hartert (1903), but by the time of the present survey it was only recorded sparsely on three smaller satellite islands (names withheld). Collar and Marsden (2014) have proposed that the Wakatobi population is a distinct endemic subspecies C. s. paulandrewi, a treatment adopted by Eaton et al. (2016), though this proposed split is solely based on morphological comparisons using the small number of specimens collected by Kühn ( Hartert, 1903) and is not universally accepted (Billerman et al., 2020; Gill & Donsker, 2020). Targeted conservation efforts are likely required to ensure this population remains viable.