Accipiter atricapillus and Aix sponsa. Lake Umbagog, Maine. 1897. We started homeward a little before sunset. As we were Sept.22. rowing up the Androscoggin a Wood Duck crossed that river com- ing from Sweat's Meadow. A moment later I saw it coming back through the stubs flying at great speed with a Hawk in hot pursuit. About 30 ft. separated the two birds when they first attracted my attention. The Hawk reduced this distance about one half in the next 100 yards but the Duck on reaching the middle of the river inclined sharply downward and striking the water with great force at once disappeared beneath the surface diving directly from on wing. The Hawk turning back alighted on a stub on the left bank. I had a good view of him as he sat with his breast turned towards me and decided him to be an adult Cooper's, my only doubt for the moment being as to whether he was a male or not. The Duck by this time had come to the surface and the Hawk again stooped at her, when she again dove. This was repeated at least seven or eight times. Either the Duck grew tired or, as I thought at the time, more confident, for after the first two or three dives she would wait until the very last instant before going under. Indeed the Hawk more than once extended its legs and feet (both of them thrust forward nearly to his head) with the talons wide spread evidently fully expecting this time to grasp his prey. and more than once his talons seemed to be within less than a foot of the Duck when she disappeared. Had he poised over the