20 UPTON, MAINE 1872 June 9 - 11 Night hawks were "booming" and circling about high up on the sky. Here we heard on all sides a new note, a single sl-ap repeated at intervals of about 20 seconds, and after much time spent in pursuit detected the author in Emp. flaviventris: this note which we afterwards heard quite frequently is the true song of the ♂ , the pe e-e being uttered by both sexes and is much like the "chebec" of E.min. We found E.trailií very abundant in the alder bushes along the edge of the meadow and saw a ♀ building. Started back about 6 and came down the five miles of river in a little over an hour the current running very fast in places. The scenery was wild and fine though a trifle monotonous with a broad fringe of alders and water willow on the rivers edge and a very heavy growth of spruce and fir,many of the trees hanging directly over the stream. Water thrushes and redstarts were very abundant in the swampy thickets while D.castanea, D.tigrina, D.maculosa and Hel.piregrina were everywhere abundant in the taller trees. An occasional Wood duck and a pair of Ardea herodias were all the large birds that were seen. In the meadows above however we saw one flock of 16 and another of 18 Anas obscura. These we were informed by Mr. Stone were the old drakes. Got back to the house by 8 o'clock. June 10 Rained hard all day: got out in the afternoon for an hour or two and shot 3 C.borealis. June 11 Clear and warm. Went up on the hill and striking on further than ever before, discovered a swamp or range of swamps