The two seabird species unique to Hawaii, Newell’s shearwaters and Hawaiian petrels, are the focus of major conservation efforts — at risk from habitat degradation, invasive predators, and other threats, their populations plummeted 94 percent and 78 percent respectively between 1993 and 2013. However, a new study offers hope of previously undetected colonies of these birds on the island of Oahu, from which they were believed to have vanished by the late 1700s.
