' SYLVICOLID.E — THE WAUIJLEUS. 201 



A patch on the vortox, as in If. rKjiai/iillii, ami the iipv'r tail-covorU, dark clicstnut- 

 bro\\ II. Lores to nostrils and rcfjion round llic eye, like tlio tiiroal, in ratliur dcitidud I'on- 

 trast to the ash of the crown. Quills and tail-t'oatlicrs brown, narrowly cd},'t'd externally 

 with g:ray. An obsolete^ terminal white paleh on the iinier weliol' the outer I'eatiiei-; this 

 wt'b in most of the other tail-leathers likewise narrowly edi,'eil with white. Axillars and 

 inner lace of wings white. Iris brown. Tarsi blue. Leny:th, in life, 4.40; extent, fl.ild; 

 wiuf,', 2.40. LeufTth of skin, ;5.!)0 ; wing, 'l.'.i',) ; tail, l.f<(j; tarsus, .04; mi<ldle too and 

 claw^.i'O ; bill above. .3") ; pipe, .")(». " 



IIau. Fort Mohave, Colorado Kiver (Middle Province of rnited .Slates) : Fort Wliipple, 

 Arizona. 



Habits. Thi.s is also a now or recently discovered species of this interest- 

 ing group of Warblers. In regard to its iiest and eggs nothing is positively 

 ascertained, yet as all the birds of tiiis genus luv nown to build on llie 

 ground, and to have a great unil'onnity in the characteristics of their eggs, it 

 seems to lie a matter of natural inference that this species idso is a ground 

 builder, anil litis eggs similar to those of the Xashville Warbler. For the 

 little we know in regard to its habits and distribution, we are indebted to 

 the observiitions of Dr. J. G. Cooper of Ciiliforniu, who first discovered it, 

 and to Dr. Cones, who litis since met wiUi it in Arizona. 



Dr. Coo2)er first olwerved this sjiecies nciir Fort ^Moliave, where it matle its 

 a])pearance about the last of Mtirch. His attention was ctiUed to it liy its 

 peculiiir notes, resembling those of some Jhni/roinr, but fainter. After con- 

 siderable watching and scrambling througli dense mezipiite thickets in its 

 pursuit, he succeeded in shooting one, and found it to be a new species. 

 Afterwards they became more numerous, frecpienting the tops of the mez- 

 ipiite-trees in jini'suit of insects, and constiiiitly uttering their short liitt 

 pleasing notes. About ten days after tlie iirst apjuarance of the males, Dr. 

 Coojier obtained the first female, tind thinks tiiat without doubt they are 

 much later in their mignitions, as is the case witli other Warblers. He, 

 wa.s not able to discover their nest, liaving to leave the Vidley late in 

 ^fay. 



Mr. Holdeii olitained other , pecimens of tliis bird, nc ir the :54th parallel, 

 in March of IHli;}. 



Dr. Coues met with tliree individuids of this sjiecies near Fort AVliipple, 

 where it is a summer resident. It arrives tiiere between the J "ith and the 

 20tli of April, and remains until the latter ]>iU't of Septen.oer. It mates 

 about tjie last of April, and the young birds tippeiir early in tf tine. 



Dr. Cotie.. regiirds its haliits a.s more like those of the true (iround War- 

 blers than those of the other species of this group. It shows a decidctl 

 preference for thickets and copses, ratlier than for high open woods, and is 

 also an exceedingly shy and retiring species. To the extreme difUcully of 

 observing or procuring it Dr. Coues attributes its having so hmg remained 

 unnoticed. 



It is described as exceedingly active in all its motions, and quite as rest- 

 less as a Polioptila, to which class, in its colors, it also bears a ch)so resem- 

 2U 



