SYLVIIDiE POLIOPTILA CCERULEA. 17 



Tr. Chic. Acad, i, 18G9, 277 (Alaska).— Coop., Am. Nat. iii, 1869, 32 (Montana) ; 



B. Cal. i, 1^70, 32.— AiKEX, Pr. Bost. Soc. xv, ld72, 195 (Eastern Colorado).— 



TniPPE, ibid. 234 (Iowa).— Allen, Bull. M. C. Z; ii, 1871, 260 (Florida).— Mayx., 



B. Fla. 1872, 25.— Coues, Key, 1872, 78, fig. 19.— Snow, B. Kans. 1873, 4.— And 



of authors generally. 

 Megulus satriq)a var. olirascens, Bd., Rev. 1864, 65 (in test). 

 Si/tcia regnlus, Wils., Am. Oru. i, 1808, 126, pi. 8, f. 2. 

 liegulus cristatas, Vieill., 01s. Am. Sept. ii, 1807, 50, pi. 106. — Bp. Syn. 1828, 91. — Nutt., 



Man. i, 1832, 420.— AUD., Orn. Biog. ii, 1834, 476, pi. 183. 

 Begulus tricolor, Nutt., Man. i, 1832, 420. 

 (?) Fiegulus cuvicri, AuD., Orn. Biog. i, 1832, 288, pi. 55; Syn. 1839, 82; B. Am. ii, 1841, 



163, pi. 131.— Nutt., Man. i, 1832, 416.— Bp., List, 1838, 19. 



Hab. — North America at large. Mexico. 

 Not observed by any of the Expeditious. 



With a range somewhat correspondiug to that oi R. calendula, and 

 nearly as extensive, this species is rather more northerl}-. Thus, it 

 winters abundantly in the Middle States, and even as far north as Mas- 

 sachusetts, on the Atlantic side ; while on the Pacific it occurs at the 

 same season at least as high as Washington Territory. Its winter range 

 extends to our southern borders, and into Mexico, but not, so far as we 

 now know, to Central America. Similarly, nothing is known with cer- 

 tainty of its breeding anywhere in the United States, though it proba- 

 bly will be found to do so in mountainous regions toward our northern 

 border. It has been found nesting in aSTewfoundland by Audubon, and 

 in Labrador, according to Baedecker, who notices the egg, as above; 

 but I have never myself seen an authentic specimen. 



At a very early age the crown is perfectly plain, but it soon shows the 

 golden of both sexes, and subsequently the tiame-color of the male. 

 There appears to be little probability that R. cuvieri will be established 

 as a species, and nothing to show that the true R. cristatiis of Europe 

 occurs in this country, though it is so given by ^N^uttall. 



Subfamily PoLioPTiLiN^ii; : Gnat-catchers. 

 POLIOPTILA CCERULEA, (Linn.) Scl. 



Blue-gray Gnat-catclicr. 



Motacilla can-ulea, Linn., Syst. Nat. i, 1766, 43.— Gm., Syst. Nat. i, 1788, 992. 



Sylvia cocrulea, Lath., Ind. Oru. ii, 1790, 540.— Vieill., Ois. Am. Sept. ii, 1807, 30, pi. 68. — 

 , Bp., Syn. 1828, 85. 



Muscicaxm cocrulea, Wils., Am. Orn. ii, 1810, 164, pi. 18, f. 3. — Nutt., Man. i, 1832,297. — 

 Aui)., Oru. Biog. i, 1831, 4:51, pi. 84. 



Culicivora cocrulea, Bp., List, 1S38, 24.— AuD., Syn. 1839, 46; B.Am, i, 1840, 244, pi. 70.— 

 GiiiAUi), B. L. 1. 1844, 4G.— Bp., C. Av. i, 1850, 316.— Cap,., J. f. 0. 1855, 471 (Cuba). 



Sylvania cocrulea, Nutt., Man. i, 2d ed. 1840, 337. 



Folioi)tila carulca, Scl., Pr. Z. S. 1855, 11.— Bd., B. N. A. 1858, 380; Rev. 1864,74.- 

 Heeiim., p. R. R. Rep. x, pt. vi, 1859, 39.— IIayd., Rep. 1862, 164.— Coues «fc 

 Pkknt., Smiths. Rep. IC^Gl, 411. — Di;ess., Ibis, 1865, 231. — CoUE.s, Pr. Phila. 

 Acad. 1866, 66. — Allen, Pr. Ess. lust, iv, 1864, 83.— Coues, ibid, v, 1868, 268. — 

 Lawu., Ann. Lye. N. Y. viii, 1866, 283.— Tunx., B. E. Pa. Ifc69, 21.— Lawk., Auu. 

 Lye. N. Y. ix, 1869, 199 (Yucatan).— Coop., Pr. Cal. Acad. 1870, 75 ; B. Cal. 1870, 

 35.— Allen, Bull. M. C. Z. ii, 1»71, 261 ; iii, 1872, 124.— Scott, Pr. Bost. Soc. xv, 

 1872.— TitiPPE, ibid. 236 (Iowa).— Mayn., B. Fla. 1872, 28.— Coues, Key, 1872, 

 78.— Snow, B. Kans. 1873, 6. 



Motacilla ctttia, Cal, Syst. Nat. i, 1788, 973. 



Sylvia cana, Latm., Iiul. Oru. ii, 1790, 543. 



Culicivora mcxicana, Bp., Consp. Av. i, 1850, 316 ( $; not of Cassin). 



I'olioptila mcxicana, Scl., Pr. Z. S. 1859, 363, 373. 



Hab. — United States from Atlantic to Pacific ; north to Southern New England^ 

 and on the I'acilic side to 42^. INIexieo, and south to Guatemala. Cuba. Baluimas. 

 Winters along the Southern United States border (Florida, Colorado Valley, cVe.). 



Not obtained by Captain RaynoUU' Expedition, nor by any of tlio later ones. 



Livutvnaut U arrcu'd ExiKdilion. — 4682, Bald Island. 

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