Gull-like seabird (4)
(Other definitions for tern that I've seen before include "Small gull with forked tail" , "Small slender gull" , "Winger" , "Seabird, sounds like become sour" , "Long-winged aquatic bird" .)
(Other definitions for fulmar that I've seen before include "Get an strange armful of this seabird" , "Bird of petrel family" , "Heavy short-tailed oceanic bird" , "Gull-like sea bird" , "Heavy short-tailed polar bird" .)