Falco columbarius. Lake Umbagog, Maine. I395. could scarcely follow him, gliding down a long, gentle decline Sept, 24. moving his wings steadily yet with a rapid, tremulous or vi- (2) brating motion. At each swoop I felt sure he would strike his prey and I repeatedly saw him check his speed abruptly and thrust out his talons in the attempt to do so but at the last moment the Jay invariably eluded him by dropping suddenly into a tree top when the Hawk would shoot past, circle and rise a- gainto make ready for another stoop. I have said that he kept above the Jays but really he kept to one side of the flock (as if to tempt them to try to escape) so that his swoops were ordinarily 20 to 40 yards in length with a drop of perhaps 6 or 8 feet for the total distance. He would make this distance while the Jay was flying three or four yards. It was one of the most beautiful and interestong spectacles of the kind that I have ever witnessed. The Hawk seemed to be in dead earnest but in view of what I have seen Pigeon and Duck Hawks do on previous occasions I suspect that this bird was simply amusing himself. The Jays did not seem to take him very seriouslyor to be much frightened. Finally he disappeared and they flew off in peace. An hour later I shot a young Pigeon Hawk near Leonard's Pond. /01