The first confirmed nesting location of the Hawaiian population of the Band-rumped Storm-Petrel (Oceanodroma castro), an endangered seabird, was recently discovered on Hawai‘i island after decades of searching. Following the discovery, we analyzed nest site preferences of the Band-rumped Storm-Petrel at this site using a paired design. Band-rumped Storm-Petrels preferred deeper crevices compared with those available within 100 m of the nest sites. Physical and environmental characteristics of Hawaiian Bandrumped Storm-Petrel nest sites may aid conservation efforts including on-the-ground searches, removal of invasive mammalian predators, identification of potential translocation sites, and habitat restoration for this endangered species.