Accipiter cooperii. Lake Umbagog, Maine. Chases a Sparrow. 1896. At two P.M. as I was on my way to the boat landing a Aug. 14. young Cooper's Hawk came skimming across the Lake from the direction of B.Point and alighted for a moment in a poplar by the shore. It then flew across the Lakeside meadow pursued by a number of excited Barn Swallows who pursued dove down on it from above picking at its head and evidently annoying it a good deal for it dipped or dodged repeatedly. On reaching the road nearly in front of the hotel it turned sharply to one side and plunged headlong into the top of an apple tree driv- ing out a large Sparrow (probably M.fasciata) which at first flew upward and out over the field escaping the talons of the Hawk half-a-dozen times by doubling at the last moment but which finally sought refuge in a dense growth of golden rod . and Eupatorium by the roadside. The Hawk alighted on a stone wall within a yard of the spot where the Sparrow had disap- peared and sat there motionless in a crouching position watch- ing, its plumage ruffed, its small head bent downward. The Sparrow wisely kept close hid and after about ten minutes the Hawk lost patience and flew down the road to a fence post where it perched in an absolutely erect posture its feathers drawn in so tightly that it looked like a continuation of the post. Soon after this it plunged into another apple tree without moving anything and then made for the woods. All the 24.