The sooty tern is about 16 inches long with a white forehead & is otherwise this color above & white below
...... 
by back color when it is acquired but are otherwise probably best separated by 
the... [DOC] [TLE] Birds of the Olympic Peninsula, Washington - JStor [PAR] the north limit are: White Rock, the Jagged islet-Carrol islet group, Cape ..... Its 
length is about 16 inches.