Black-browed Albatross (Thalassarche melanophris) Science Article 5
Many Antarctic seabirds depend on prey that are patchy, cryptic, ephemeral, and unpredictable in location. These predators typically employ two alternative behavioralstrategies for locating resource patches: direct visual or olfactory detection, and indirect detection (local enhancement) by sighting other predators that are already exploiting a patch.
DANIEL GRUNBAUM, AND RICHARD R. VEIT, Ecology, 84(12), 2003, pp. 3265-3275