Audubon’s Shearwaters are small seabirds that return to land at night and nest in burrows or crevices. These characteristics make them especially difficult to find, requiring some alternative research methods. Researchers play a recording of the shearwater’s call and listen for a response to determine which areas to search for nests. In addition, marine radar can track the movements of shearwaters to and from their nest sites even when it’s dark. This research has been important in identifying key nesting areas and developing population indicators.
Upon arrival, Saba visitors are often surprised by the world’s shortest what?
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