The nest obtained in Roxbury was in a bush, a few feet from the ground, in a very wild region of forest and rocks. Externally, except in its length, which was less, it resembled a nest of the _G. trichas_, being made of coarse, dry grasses. Internally it was much more warmly lined with feathers and soft fur than is the case in nests of the Yellow-Throat. The eggs were of a crystal whiteness, marked at their larger end with dark purple, and but for their smaller size might have been mistaken for those of _G. trichas_. The position of the nest, however, was conclusive in regard to this point. The egg from Coventry was substantially similar, except that reddish-brown dots were mingled with the purple markings, in the form of a wreath around the larger end. Wilson describes this Warbler as songless, but attributes to its counterpart, the Hemlock Warbler, a very sweet song of a few low notes,—a very different account from that given by Audubon of the song of the Blackburnian. Mr. Paine states that this species is resident during the summer months in Randolph, Vt. It is, he says, a very close companion of the _D. virens_, arriving at the same time with it even to a day, or about the 10th of May. Its dry chirping song may then be heard in striking contrast with the sweet notes of the _virens_. He was not able to find its nest. Mr. C. W. Wyatt met with this species as a winter resident at Alto, in Colombia, South America. Its upward range seemed to be terminated only by the paramos. Among the oaks on the Pamplona road he found it very common just under the paramo, the bright orange throat of the male making it a very conspicuous bird. He was led to believe that they were not found there at a lower elevation than five thousand feet. Dendroica dominica, BAIRD. YELLOW-THROATED GRAY WARBLER. _Motacilla dominica_, L. Syst. Nat. 12th ed. 1766, 334 (_Ficedula dominica cinerea_, BRISS. III, 520, pl. xxvii, fig. 3). _Dendroica dominica_, BAIRD, Rev. Am. Birds, 209. _Motacilla superciliosa_, BODDÆRT, Tableau Pl. enl. 686, fig. 1, 1783. _Dendroica superciliosa_, BAIRD, Birds N. Am. 1858, 289.—SCLATER (Xalapa, Oaxaca, Jamaica, Mexico).—SCLATER & SALVIN, Ibis, 1860, 274 (Duenas, Guat.; Sept.).—MARCH, Pr. A. N. Sc. 1863, 293 (Jamaica).—GUNDLACH, Cab. Jour. 1861, 326 (Cuba; very common). _Motacilla flavicollis_, GMELIN, Syst. Nat. I, 1788, 959. _Sylvia fl._ LATH.; WILS. II, pl. xii, fig. 6. _Motacilla pensilis_, GMELIN, Syst. Nat. I, 1788, 960. _Sylvia p._ LATH.; VIEILL. (St. Domingo).—BON.; AUD. Orn. Biog. I, pl. lxxxv; NUTT. _Sylvicola pens._ RICH; BON.; AUD. Birds Am. II, pl. lxxix.—GOSSE, Birds Jam. 1847, 156 (Jamaica). _Rhimanphus pens._ CAB. Jour. III, 474 (Cuba). Other localities: _Cordova_, SCLATER, P. Z. S. 1856, 291. _St. Domingo_, SALLÉ, P. Z. S. 1857, 231. _Jamaica_, GOSSE, Birds Jam. 156.