Dendroeca castanea. Maine (Lake Umbagog). copy ① 1871. May 30- June 10. More abundant than any other bird in this locality. Found everywhere in the woods (except in the denser arbor-vitae swamps) but most numerous in mixed growths. They kept chiefly in the very tops of the highest spruces, and as they frequently sang fifteen minutes or more in one place without apparently moving, they were most difficult to find and shoot. In motions they were slow and sluggish like that Black Poll Warbler, but unlike that species were never fat. We seldom saw them in deciduous trees. Their song was a shrill, feeble, cheeping note, repeated three or four times, and varied considerably in different individuals. Sometimes it was a simple zoo-zoo-zoo like that of the Golden-crest Kinglet; at others more musical and warbling, closely resembling those of the Redstart. Two nests were found, both placed near the extremity of horizontal spruce branches about twenty feet above the ground. They were large and bulky, and scarcely distinguishable from those of the Purple Finch. One contained two fresh eggs June 1872/5-62) P. clut another three fresh eggs June 9. copy ② 1872. June 3- 14. Abundant and migrating up to June 5. After this date their numbers were reduced one half, although numbers remained to breed. The difference between the song of this species and that of D. tigrina is subtle but distinctly marked. The notes are fewer, rarely exceeding three repetitions of the word zoo. 1873. Aug. 9. Shot a young bird in first plumage. 1874. July 30. Shot one in first plumage. 1876. June 15. Abundant on the south shore of the Meadows in a growth of rather young spruces.