Buteo borealis. Lake Umbagog, Maine. 1894. A superb adult Red-tail was soaring and hovering over a Sept.6. hill side in Newry (I was driving between Bethel and Lakeside). It thrice hung suspended on set wings for several seconds, without drifting, facing the strong wind. I had hitherto supposed that none of our large Hawks except Archibuteo were able to poise in this way. Buteo borealis. 1895, September 24. (?) Lake Umbagog. On the 19th I saw circling over Sweat's meadow a large Buteo which I called a Red-tail, but which I noticed had a whitish rump. We found to-day what was doubtless the same bird, sitting on a stub at the head of Errol Hill Pond. It flew presently and came past us within 100 yards, soaring and rising, giving me a good view of it through my glass. It looked very like an immature Red-tail, but it was rather small for that species and the whole rump was dirty white.