Hooting at night. Bubo virginianus I heard a pair of these Owls tonight behind the Ball House. They hooted for at least half-an-hour and actually kept me awake during this time. One would cry ho-ho-hoho, ho-be-ho-hoo when the other would almost immediately answer who-who who, whoo, whoo. The voice of the first resembled the notes of a horn while the tone of the second was very close to that of a Turtle Dove coo. Whiton, Maine Oct. 13, 1852 Bubo virginianus I. Umbagog. Great Horned Owl The only Owls of this species noted by me this autumn were two, probably a pair, and presumably the same birds observed last year which inhabited the woods in the vicinity of the outlet. During the month of September and October, they were frequently heard hooting in the neighborhood of our camp. They did not, however apparently hoot every night, but, on the contrary, not on the average more than two nights in the week . When heard at all they were usually heard a number of times, and frequently at short intervals during the entire night. They began regularly about fifteen minutes after sunset, just as the twilight began to fall. On moonlight nights they were particularly noisy, even hooting all night long. They were never heard at all during rainy or very cloudy nights, and never during the day-time. Towards the end of our stay one of them frequently made our camp a visit late in the night, about three or four o'clock in the morning, as near (2) I. Umbagog, Maine. Great Horned Owl as I could judge. He would come within twenty yards of my tent, invariably alighting on the top of a tall dead hemlock. At this short distance, his notes had a soft, almost cooing sound. We tried several times to get a shot at him, but he invariably flew the moment any one of us appeared at the opening of the tent. During the entire autumn I heard nothing from either of these owls but the ordinary hoot. One of them, however, frequently uttered eight syllables instead of the usual five, grouping them thus: ho, hoo-hoohoo, ho-ho-ho-hoo These owls evidently range over a wide extent of country, but still I do not think they often hooted much be- yond the hearing of our camp. On still nights their voices could be heard at a distance of more than a mile, and, as nearly as I could judge, quite as far as a mile and a half.