216 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Yol.YI. 



SYLVIOOLID^. 



Helminthophaga lucice Cooper. — Lucy's Warbler. 



Although not reported from ISTevada, Dr. Cooper, the discoverer of this 

 species, found it upon the eastern bank of the Colorado Eiver, at Fort 

 Mojave. It is probable that the bird will yet be found upon the western 

 shore, the country presenting similar ijhysical characteristics, with a gen- 

 eral distribution of mesquite and other comparatively worthless vegeta- 

 tion common to the deserts. 



HelmintJiopliaga virginice Baird. — Virginia's Warbler. 



This species was not found west of the Euby Mountains by Mr. Eidg- 

 way where it was rather common in July and August, but eastward, 

 on all the ranges having equally extensive growths of timber. It is not 

 noticed by Dr. Cooper as occurring in the vicinity of Fort Mojave, but 

 was found to be a summer resident at Fort Whipple, Arizona, where Dr. 

 Coues secured a young bird in August. 



Helminthophaga rujica^nlla (Wils.) Baird. — I^ashville Warbler. 



Although widely distributed over temperate North America, this bird 

 seems to be an occasional visitor, if we can judge from the records so 

 far published regarding it. It was found in Secret Valley, East Hum- 

 boldt Mountains, in September, " where it was more or less common at 

 that season of the year in the thickets along the streams in the lower 

 portion of the caiions." (Ridgway.) The specimen procured by the 

 gentleman just quoted, furnished the type of H. rujicapilla var. gutturalis 

 (Baird, Brewer, and Eidgway, Hist. N. A. Birds, i, 1874, 191, pi. xi, fig, 

 8), characterized " by the yellow of the throat confined strictly within the 

 maxillae, and not, as in true rujicapilla^ covering the cheeks. Should 

 this peculiarity prove constant, the western birds may be distinguished 

 by that name." 



SelmintJiopJiaga celata (Say) Baird. — Orange-crowned Warbler. 



Mr. Eidgway reports this " as most frequently met with during its 

 autumnal migration, at which time it was the most abundant of all the 

 species of the family." In the fall they are found in the shrubbery of 

 the lower canons. It is supposed that this species has its western range 

 at the localities given — Upper Humboldt Valley, at Deering's Creek — 

 their greater abundance occurring in the Wasatch Mountains, Utah, 

 and the Eocky Mountains, still further east. 



Helmintliophaga celata lutescens Eidgw. — Lutescent Warbler. 



The brightly-colored specimens representing this variety were found 

 by the discoverer to prevail in the western depression of the Great 

 Basin, but not east of the upper portion of the Valley of the Humboldt. 



