DENDECECA NIGEESCENS, BLACK-THEOATED GEAY WAEBLEE. 55 



United States references which demonstrate the now well-known range. 

 I found this species common in i)ine-woods near Portsmouth, New Hamp- 

 shire, in June, under circumstances leaving- no doubt that it was then 

 breeding; and in the District of Columbia it is very abundant in high, 

 open, mixed woods in May and September, associating with several of 

 its allies. 



A nest of the Black-throated Green Warbler, containing three eggs, 

 was obtained by Mr. George Welch at Lynn, Massachusetts, it is 

 composed, first, of lino twigs in small bits, then of various soft, pliant, 

 fibrous substances, composing the bulk of the uest, and lined with fine 

 grasses and rootlets. The substance contains also a few feathers and 

 some downy material. The eggs measure 0.72 by 0.54, and are creamy- 

 white, rather coarsely spotted in a loose wreath around the large end 

 with dark brown and neutral tint shell-markings. This nest measured 

 a little over three inches across by nearly two in depth, and is rather 

 neatly and compactly finished. Another nest, from West Eoxbuiy, 

 Massachusetts, is smaller and deeper, as well as less regular in contour, 

 having apparently been placed in an oblique fork. The materials are 

 much the same, but there is a good deal of horse-hair circularly woven 

 inside. Tiie eggs are four, smaller than the first described (0.G7 by 0.50), 

 pure white, with finer speckling more generally distributed, though pre- 

 serving irs distinctively wreathed character. These eggs are sutiiciently 

 dissimilar to have been laid by a different species. 



DENDEGECA NIGEESCENS, (Towns.) Bd. 



Black-tliroatiHl Gray Warbler, 



Siih-ia nif/rescens, Towns., Journ. Phil. Ac. vii, 1837, 191.— Aud., O. B. v, 1839, 57, pi. 395. 



ViTiiiirora nir/resa-iis, Bp., List, 1858, 21. — Nurx., Mau. i, 1840, 471. 



Siilricohi //(V/rcwcwA', AuD., Syu. 1839, GO ; B. A. ii, 1841, G2, pi. 94. — Bv., Cousp. i, 1850, 308. 



J{liima>i])hii!i nifjrescens, Cab., Mus. Heiii. i, 1850, 20. 



Mniodltd }ii(/nsrcns, Gi;ay, Genera of Birds. 



Dendmca VNV/m«'*(s, Bo., B. N. A. 1858, 270; Eev. 1865, 186.— Scl., P. Z. S. 1858, 298; 

 1859, 374 (Oaxaca); Cat. 18fv3, 30.— HiCEini., P. R. Rep. x, 18.'.9, pt. vi, 40.— 

 Coop. & Suck., N. II. Wasli. Tor. 1860, IHO.— Coues, Pr. Pliila. Acad. 186G, 

 C9.— SUAIICH., Mem. Bost. Soc. i, 18G9, 547 (Orizaba, rare).— Cool-., B. Cal. 1870, 

 90.— AiKKN, Pr. Bost. Soc. lt^72, 197 (Csaonido).- CoUES, Key, 1872, 98. 



"Sylvia halsci, Gui., B. Tex. 1838, pi. 3 ( 5 )," (l^dater). 



, JIab. — Rocky Mouutaius to the I'acitic, United States ; south through Mexico. 



This s[)ecies has proven not to be so exclusively a Pacific coast one 

 as was fornuuly supposed. 1 found it conuuon in the pine-woods about 

 Fort Whipple, the latter i)art of A[)ril until toward October, and have 

 reason to believe that it breeds there; but it is much more plentiful 

 during its migrations. ]Mr. Aiken's Coloradoan record is the eastermnost 

 I have seen ; Dr. Ilayden did not meet with it, nor did Mr. Allen. 



Other western Warblers remaining to be detected on the eastern 

 slopes an<l loot-hills of the Eocky ^biuntains, are />. occUJcntnlis and 

 toioisciidii, if not also l>. (jracid' ; but 1 have at present no authority 

 for including them in this work. 



DENDEOECA CCEEULESCENS, (Linn.) Bd. 



Dlack-tln'oatcd Blue Warbler. 



MotaciUa ccrruleacetm, Gm., Syst. Nat. i, 1788, 960. 



Sijlcia cwntlcsrrii^, Latm., liid. Oni. ii, 17911, 5 JO.— ViKiu,., Ois. Am. Sept. ii, 1807, 25, nl. 

 80.— D'Oimia., La Sayra's Cuba, Ois. 1840, G3, pi. 9, ligs. 1, 2 (Cuba). 



