Nesospiza acunhae questi
Nightingale Island, Tristan da Cunha Group.
Usually considered conspecific with small-billed races (nominate and fraseri) of N. acunhae of Inaccessible I, but see below. Cytochrome b sequence of present species appears identical to that of N. wilkinsi, but the two are highly distinct morphologically and behave as separate species, with separate vocal systems and no evidence of hybridization between them; treatment of present species as subspecies of N. acunhae#R incompatible with genetic evidence of independent evolution on each island. Monotypic.
Nightingale I, including offshore islets of Alex (Middle) and Stoltenhoff, in S Atlantic.
Food and feeding
Status and conservation
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