The small island of Saba harbors globally important populations of Red-billed Tropicbirds and Audubon’s Shearwaters on its steep hillsides. While tropicbirds are conspicuous, making raucous flight displays, shearwaters return to their burrows at night. Our nocturnal surveys used two methods: marine radar and listening for a response to a broadcast of their calls. These results were included in the Important Bird Area publication for Saba, authored by EPIC.