Helminthophila peregrina. Maine (Lake Umbagog). copy ① 1871. May 30- June 10. Very common and generally distributed, being found every where throughout the woods but especially in arbor- vitae swamps and thickets of young firs. They feed high up in the tree-tops and were very restless, rarely remaining long in one place, and frequently taking long flights. They sang freely at all times of the day. Frequently on wing, especially just before alighting af- ter a long flight, the song resembles that of the Nash- ville Warbler but is shriller and more prolonged and rapid. The female has a sharp chirp, precisely like that of the Nashville. They were usually found nearer the ground than were the males. One shot June 7 was incubating, and several taken previously had laid all but one or two of their eggs. copy ② 1873. Aug. 12. Abundant along the banks of Cambridge River above the dam, associating with other Warblers in large com- panies, and especially frequenting the alders and Vibur- nums overhanging the water. 1874. July 28. Shot a young female in the firs behind the mill. Aug. 6. At least two-thirds of a flock of mixed Warblers met with to-day in second growth birch and poplar on the Tyler road were this species. They uttered a chirp very like that of the Nashville Warbler, and were shy and restless. I shot four. 1876. June 6. Three shot and a number seen and heard. I think there was a general arrival to-day. “ 4. A male singing among the firs behind the mill. “ 12. Two males singing on the edge of the Tyler Farm. “ 14. A single male singing on the Tyler road. 1879. May 22. One heard a few miles above Bethel. June 1. Not a single specimen seen or heard as yet.