Nesasio solomonensis is endemic to Bougainville in Papua New Guinea and Choiseul and Santa Isabel in the Solomon Islands. It is presumed to be a species of low population density as it is rarely seen and no more than one bird has been heard calling from any location. In a well-studied area at Tirotonga on Isabel, three nests were about 2 km apart^2,5, which would extrapolate to an approximate total population of c.3,000 pairs, but it appears to be unusually common in this area².