Bubo virginianus. Lake Umbagog, Maine. 1897. But the most interesting experience of the evening (we Sept.11. that is, Will and I had rowed over to the Outlet marshes and were sitting in the boat) was with the Owls. They seemed to be unusually active and noisy. We heard at least three Great- horned, two hooting in responses near the entrance to Leo- nard's Pond, the third in the direction of Moose Point. A fourth (or perhaps it was one of the two at Leonard's Pond for it came from that quarter) passed us within 100 yds. flying low and steadily but very swiftly out over the Lake towards Pine Point. It flapped its wings most of the time but occa- sionally skimmed on set wings for a few yards at a time. It looked like a very large individual. Its flight was striking- ly unlike that of the Short-eared Owl being, as I have just said, very swift and steady and giving an impression of great momentum. The bird did not seem to be hunting, nor did the Black Ducks seem to be alarmed by its passage across the marsh although, as we learned a few minutes later, it must have flown nearly over the flock referred to above.