Surveying Cory Shearwater colonies with camera traps and identifying potential invasive nest predators

The Azores holds the largest population of Cory's shearwater Calonectris borealis (Cory, 1881) (Aves, Procellariiformes, Procellariidae) in world. One major threats this species is predation by invasive mammals, which were introduced during European colonisation islands. present study provides a dataset from camera-trapping survey performed colonies Cory’s shearwater. sampling was conducted between 7 April and 23 October 2019, covering entire breeding season, three Terceira Island (Azores). A total 32 nests sampled using motion-triggered cameras. aims are to provide information about ecological patterns Cory identify potential nest predators. Our results include 6972 records 15 (nine birds, five mammals one reptile), 5414 shearwater, 478 mammal predators 1080 another vertebrate species. Information biology also provided, as circadian behaviour habitat description.