Languy (2019, Birds of Cameroon) maps the confirmed observations of this species, with 5 confirmed sites (dots on map)
Criterion B. The EOO based on Languy is smaller than the range you present in your map, although I do not know if this aligns with the 51,700 km2 that is used to quantify the population in the species review. Might it approach 20,000 km2? The AOO based on Languy would seem to be smaller than 2,000 km2 and possibly even 500 km2. As it is known from few sites (5 dots) as well as declining habitat, it might therefore be VU or even EN based on this criterion.
Criterion D. If it is known from 5 sites or fewer, then it may meet this criterion.
I fully agree with the comments of Hugo. This species is known only from few sites (confirmed by Marc Languy in Birds of Cameroon, 2019) and has a declining habitat. You should maintain it as EN based on these criteria.
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