Nocturnal foraging by great skuas Stercorarius skua: implications for conservation of storm-petrel populations - Votier, Stephen C.; Crane, Jonathan E.; Bearhop, Stuart; de León, Ana; McSorley, Claire A.; Mínguez, Eduardo; Mitchell, Ian P.; Parsons, Matthew; Phillips, Richard A.; Furness, Robert W. (Journal of Ornithology, 2006)