Evaluating population impacts of predation by owls on storm petrels in relation to proposed island mouse eradication

We quantify the expected demographic benefit to a seabird of conservation concern, the ashy storm‐petrel Oceanodroma homochroa , from the proposed eradication of introduced house mice Mus musculus on the South Farallon Islands, California. A key objective of the eradication is to reduce storm petrel predation by burrowing owls Athene cunicularia , which stopover on the island during their fall migration. Mouse trapping and field surveys of both...