434 ORNITnOLOOY. 



except in the soutlicni })ortion of its ]Kil)itat, Audiilxni's "Warbler, tlie 

 western re[)resentative of that species, is the only one of the family which 

 remains during the winter. Its migrations seem to be mainly, if not 

 entirely, vertical, its summer-home being the pine foi-ests of the mountains, 

 Avhile in winter it dwells among the cotton-woods of the river- valleys, or 

 the brushwood of the lower canons. In its habits and manners it is an exact 

 counterpart of D. coronata, which it also resembles so strikingly in plumage; 

 but its notes are markedly different, the usual one being a feeble ivit, very 

 uidike the sharp chip of the eastern species. 

 List of specimens. 



218, S ad.; West numboldt Mouritaius, Nevada, September 25, 1SG7. SJ— 9— "i — 

 2-j?._i|— ]i_2i— 1. Bill, tarsi, and toes, deep blauk; iris, bazel. 



245, iad.; West Humboldt Mountains, October 8, 1SG7. 57_t)i_3i— 2g— g— J— 

 2/g — lj\. Same remarks. 



340, ?«/?.; Trnckee Valley, IS'cvada, December 7, ISGS. 51— SJ— 25— 2-;< — ,\.— | /,— 

 -K — «• Same remarks. 



493, <? ad.; Garsou City, Nevada, ApYil 4, ISGS. G-9g— 3y\— 23. Iris, burnt- 

 umber. 



500, S ad.; Carson, April 18, 18GS. C— 9A— 3|— 2^. Bill, jet blaek ; iris, buriit- 

 luuber; tarsi and toes, sepia-black. 



1257, single egg; Parley's Park, Wiibsatcb Mountains, Utah, June 23, 18G9. 

 Nevst near extremity of horizontal branch of pine tree, about ten feet from ground j 

 contained, besides, three young. 



Geothlyims tkichas. 



niaryliiaid Ycllow-tliroat. 



Tardus irichas, Linn., Syst. Nat., I, 17(!G, 293. 



Geothlypis trichas, Cabanis, Mus. Hein., 1850, IG. — Baiud, B. N. Am., 1858, 241 ; 

 Catal., 1859, No. 170; Review, 1865, 220.— Cooper, Orn. Cal., 95.— CcfuES, 

 Key, 1872, 107, fig. 47 ; Check List, 1873, 97 ; B. N.VV., 1874, 74.— B. B. & H., 

 ITist. N. Am. B., 1, 1874, 297, pi. XV, figs. 7, 8.— Henshaw, 1875, 204. 



In all bushy places contiguous to Avater, this little bird wan invariably 



to be found ; but it was confined to the valleys, being replaced .imong the 



mountains, even in the lower canons, by the G. macgllllvraiji. Clumps of 



wild-rose briers and the banks of the sloughs seemed to be its favorite 



resorts, and in such localities near Pyramid Lake it Avas one of the most 



abundant species in May, and all day long enlivened the vicinity of one of 



our camps by its pleasant song of tvitcJi'ifij, ivitch' iti/, ivitch'itij — often from 



several rival males at the same time. 



