Upton, Maine. 9 1871 towards incubation. The nests were all quite large, deeply hollowed and lined principally with feathers. 40 D. Blackburnia. Common. Affected the mixed woods where both sexes put at always in the tops of the highest beech and birch trees. After a time taken June 9th showed no signs of approaching incubation and they probably bred very late. The song of the male was short and unmusical ending in a high trill. This Warbler though abundant was scarce in comparison with D. castanea, moenulae, etrigine. 41 D. castanea. Extremely abundant, in fact the most so of any birds in the region. Affected principally the mixed woods, though found even where exclusive on some of the cedar swamp. Kept always in the very tops of the highest Spruce trees, and would frequently sing fifteen minutes or more in one place without apparently moving, or exposing itself to view, and was accordingly, a very hard bird to shoot. Slow and sluggish in all its motions like D. striata, it was never found encased in fat like that bird. We very seldom saw them in any of the deciduous trees. This song was as wild yeeh cheeping out, repeated three or four times and varying considerably in different individuals, sometimes scarcely distinguishable from the gee-ga of Regular Salsapra; at other times musical and warbling like that of S. rutila. This nest of which we found several, were very large and bulky and scarcely distinguishable from that of Ears Gypsermus. All were built in Spruce trees and horizontal boughs near the extremity.