Figure 1: Distribution of the most commonly sighted seabird, Black-legged Kittiwake (Rissa tridactyla; n = 219) and sea duck, Long-tailed Duck (Clangula hyemalis; n = 321), in Prince William Sound during the late March 2013 EVOS Herring and Research Monitoring Expanded Adult Herring survey cruise. Sightings of both species were concentrated near prespawning Pacific herring aggregations. Size of circle indicates count. Gray lines indicate observer transects.