16. Dendrœca æstiva (Gmel.) Bd. Yellow Warbler.—Rather common at Fort Fairfield. Not met with at Grand Falls.
17. Dendrœca cærulescens (Linn.) Bd. Black-throated Blue Warbler.—Rather common at Fort Fairfield. At Grand Falls it was common in hard woods where the underbrush was thick.
18. Dendrœca coronata (Linn.) Gray. Yellow-rumped Warbler.—It was common at Fort Fairfield. At Grand Falls it was rare during May. All had left before the 9th of June.
19. Dendrœca maculosa (Gm.) Bd. Black-and-yellow Warbler.—Common.
20. Dendrœca pennsylvanica (Linn.) Bd. Chestnut-sided Warbler.—Common.
21. Dendrœca blackburnæ (Gm.) Bd. Blackburnian Warbler.—This bird was seldom seen while we were at Fort Fairfield, and was not met with at Grand Falls.
22. Dendrœca virens (Gm.) Bd. Black-throated Green Warbler.—Rather common at Fort Fairfield. Not met with at Grand Falls.
23. Dendrœca tigrina (Gm.) Bd. Cape May Warbler.—I shot a male at Fort Fairfield, June 23, in a thick second growth of spruces on the edge of a path.
24. Siurus auricapillus (Linn.) Swains. Golden-crowned Thrush.—Rather common at Fort Fairfield. At Grand Falls it was seen only in the hard woods, where it was not common.
25. Siurus nævius (Bodd.) Coues. Water Thrush.—Breeding at Fort Fairfield, but not very common. It was not met with at Grand Falls.