Rio de São Tomé, São Tomé.
Sometimes placed in genus Lampribis, together with B. rara. Usually considered conspecific with B. olivacea; phenotypic distinctions difficult both to identify and to quantify owing to small sample sizes of specimens and paucity of photographs, but differs in its very small size (tail length 92 [n=1 female] vs 174 [n=4 females]) (4); facial pattern mid-grey-blue, with no dark marking on lores (2); reduced gloss on wings (1); duller body plumage (1). Monotypic.
C & S São Tomé I (along Io Grande, Ana Chaves, São Miguel, Xufexufe and probably Quija catchments).
Food and feeding
Status and conservation
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