This seabird breeds in the Hawaiian Islands. It has a dark back and white underparts, nests in the island highlands, and catches squid and fish at sea.
A small shearwater with dark upperparts and white underparts, it has a long tail and slender bill, with a white spot behind each wing.
On the main Hawaiian Islands, it nests in burrows or rock crevices among dense vegetation at higher elevations. At sea it makes low-angle plunges to catch flying squid and fish.
An extinction-risk assessment has not been added yet.