i 



176 



REVIEW OF AMEaiCAN DIRDS. 



[I'AKT I. 



Med. for 1853, 1854, 82 (Greenland). —Brkwbu, ?t. Boat. Soc. N. H, 

 VI, 1856, 4 (nent and v%\i,i).—lltlinuia rub. AvD. B. A. II, j,l. 

 113.— Ilelmitherus ruh. Bon.— Sol. P. Z. S. 1856,291 (Cor.lova); 

 1859, 3tJ3 (Xalapa).— //c/»«»«M(7>Aa(7a rub. Cau.— acLATKU, P. Z. 8, 

 1858,298 (Uaxaoa; Feb. and Aug.). — Mniotilta rub. Rbinuauut, 

 Ibis, 1861, 6 (Greenland). 



Sylvia leucognslra, Shaw, Gen. Zool. X, ii, 1817, 622. 



^'Sylvia nunhvUlei" Vieillot. — Gkay. — Sylvia mexicana, Holboll. 



Ilah. Uaatern province of N. America, north to line of BritiHh Arajriea; 

 Greenland ; south tu Mexico ; not in We»t ludiea. Recorded frotu Xitlupa, 

 (Jordova, Orizaba, and Oaxaca, Mex. 



m 



A'H 



Helminthophaga celata. 



Sylvia celata, Say, Long's Exp. R. Mts. I, 1823, 169.— Borf. Am. Orn. I, 

 pi. V, fig. 2. — Add. Orn. Biog. II, pi. 178. — Sylricola cd. Rich,— 

 Vermirora eel. Jard. — Iletiniiia eel. Avi>. B. A. II, pi. 112. — llelmi- 

 thertts eel. Bon.— Sclatku, P. Z. S. 1857, 212 (Orizaba).— ^e/wiii- 

 thophagn eel. Baird, Birds N. Am. 1858, 257. — Sclatfr, P. Z. S. 

 1858, 298 (Oaxaca; December); 1859, 373; 1862, 19 (La Panula). 



—Cooper & Sucklev, P. R. R. XII, ii, 1859, 178 Lord, Pr. R. Art. 



Inst. Woolwich, IV, 1864, 115 (N. W. Boundary). 



Hah, Middle and western provinces of N. America : Youkon and McKenzie 

 River dist. Very rare in the eastern Province of U. S. ; Cape St. Lucas ; 

 western Mexico in winter. 



On comparing extensive series of specimens from the Pacific coast 

 (including Cape St. Lucas), and those from the interior of Xortli 

 America, including Arizona, Utah, Rocky Mountains, Tainiuilii»a.s 

 and the Hudson Bay territories, I find that the former are of a nmcli 

 brighter and clearer yellowish beneath and olivaceous above tliaii 

 the latter. In all these there is much gray mixod with the yelli)\v- 

 ish tints, clouding and obscuring them — sometimes very oonsidonilily. 

 The concealed orange-brown patch of tiie crown is also more ro- 

 .«tricted in extent. These differences correspond with those of ma- 

 turity of plumage, Ijut even winter and young specimens from the 

 Pacific coast are more brightly colored than the others in spring. 



