Vireo philadelphicus. Maine (Lake Umbagog. 1872. June 2-5 Three specimens taken. The first June 3, the second June 4, the third June 5. The first was shot in the top of a tall beech; the second in a thicket of firs; the third in a small birch surrounded by firs. All three specimens were females. We thought that one of them uttered a faint warbler-like chirp, but otherwise they were perfectly silent. 1874. Aug. 29. Three shot on the Tyler Path. They were in a mixed flock of Warblers, Titmice, etc., in low second growth birch and maple. They were very tame, perfectly silent, and more active in motions that the other Vireos, quite as much so indeed as any of the Warblers. Two of them when picked up still held in their bills large green caterpillars. All were males and one I think an adult. " 31. Shot a young female in the same place where those were taken the 29th. Sept. 11. Shot one in perfect fall plumage; it was in the top of a high beech, in a large mixed flock. 1876. May 20. Shot a male among small wild cherry trees on the edge of the woods. It kept low down and was silent. " 31. Two specimens killed. June 21. A Vireo heard singing to-day was probably of this species, its song was most like that of the Red-eyed but recognizably distinct an emphatic whit-tu-whit coming in at regular intervals among the more warbling notes. I saw the bird and am sure that it was smaller than a Red-eye but I failed to secure it. 92