Specimens and probable breeding activity of the band-rumped storm-petrel on Hawaii

Specimens (a downy fledgling and a hatch-year juvenile) and nocturnal calling of the Band-rumped Storm-Petrel (Oceanodroma custro) are evidence that this rare seabird breeds on the island of Hawaii. Nocturnal calling over land and sightings near the coast indicate that populations nest on the southwest rift and possibly the upper western slope of Mauna Loa.