No. 2.] HOFFMAN ON THE BIRDS OF NEVADA. 217 



Dendroeca cestiva (Gmel.) Baird. — Summer Yellow Bird, 



A summer resident in most favorable localities. Dr. Cooper notes its 

 arrival at Fort Mojave about the middle of Aiiril. I found this species 

 quite abundant throughout the areas covered by willows and the mount- 

 ain mahogany, south of the Pacific Eailroad, as at Eureka, and the hills 

 south, east, and west, where streams were found. None were observed 

 south of Belmont after July 5. 



Dendroeca auduhoni (Towns.) Baird. — Audubon's Warbler. 



As is the case with other species the migrations of this one seem to be 

 mainly if not entirely vertical, its summer home being, according to Mr. 

 Eidgway, among the pine forests of the mountains, while during the 

 winter it retires to the thickets of the lower valleys. In habits it re- 

 sembles the eastern species, D. coronata, to which it also bears some re- 

 semblance. In May, June, and July numbers of these birds were noticed 

 in the more fertile and timbered tributaries of the Humboldt Eiver, 

 though none were found south of Mount Nagle. 



Geothlypis macgillivrayi (Aud.) Baird. — ^IVIcGiUivray's Warbler. 



This bird arrives at Fort Mojave during the latter part of April, where 

 Dr. Cooper noticed it. Its distribution is general throughout the north- 

 ern half of the State where the country is favorable, its haunts being in 

 the fertile valleys and caSons amongst the shrubbery. 



Geothlypis triclias (Linn.) Caban. — Maryland Yellow- throat. 



Not observed in the lower portions of the State, though it occurs in 

 the upper part quite frequently. Foundin the vicinity of water-courses 

 in shrubbery ; wherever found they were associated with individuals of 

 the i^receding form, which is the only one found breeding in the mount- 

 ains. 



Icteria virens longicauda (Lawr.) Coues. — Long-tailed Chat. 



Dr. Cooper notes the arrival of this species from the south about the 

 20th of April. At the same locality a nest was found on May 19 con- 

 taining three eggs, besides a parasitic one — Molothrus ater. It breeds in 

 the upper portions of the State about twenty days later than the time 

 noted lor the last-named locality. Mr. Eidgway also found this species 

 scattered across the State, along the line of his journey of observation. 



Myiodioctes pusilla (Wils.) Bp. — Black-capped Yellow Warbler. 



I have not found any direct reference to the occurrence of this species 

 in Nevada, except that of Mr. Eidgway's, who found it a rare summer 

 resident, though becoming exceedingly numerous in autumn. Its haunts 

 are nearly the same as those of Dendroeca cestiva. 



Myiodioctes imsilla pileolatus (Pall.) Eidgw. — Pileolated Warbler. 



This variety differs from the tn-ae, pusiUa in the brighter yellow on the 

 fore parts and the head. Habitat similar to the preceding. 



