Ardea herodias. Lake Umbagog, Maine. 1895. Sept. 7. Before the Ducks began arriving a Great Blue Heron alighted in the pond within twenty yards of us. We were only partially concealed by the brakes but we lay perfectly still for and three or four minutes the big bird stood erect and motion- less staring at us intently but evidently unable to make out just what we were. Finally he sprang into the air and made off rising in a broad spiral, coming back over us again and again at a constantly increasing height. His curiosity was apparently unsatisfied but he was nevertheless much alarmed for he kept uttering a low coc-coc during the whole time that he remained in sight.