13^^ Brewster o)i a Collect ion of Ariz. -dux Birds. 



ber, 1874. Accordingly the accjuisition of the fine series cata- 

 logued below can scarcely fail to be a matter of much interest. 

 As will appear from the accompanying data, Air. Stephens met 

 with the bird in only a single locality in the Chiricahua Mountains 

 where it was apparently not uncommon in March : init he writes 

 of a previous specimen (an adult male) taken among the Santa 

 Catarina Mountains, in February, iSSo. a date which seems to 

 imply that the species winters in the latter range. His obserya- 

 tions throw no light on its still unknown breeding haunts. 



The specimens obtained during the past season were found in 

 pine woods on the mountain sides at an eleyation of from ten 

 to twelve thousand feet. Although individuals often occurred 

 not far from one another, two were rarely seen in actual com- 

 panionship. The only exception to this is noted under date of 

 March 24, when a small flock was met with .on a steep slope 

 near the summit of one of the mountains. In their actions these 

 Warblers reminded Mr. vStephens of Donirceca occidoitalis. 

 They spent much of their time at the extremities of the pine 

 branches where they searched among the bunches of needles for 

 insects, with which their stomachs were usually well iilled. ()c- 

 casionalh one was seen to pursue a falling insect to the ground, 

 where it would alight for a moment before returning to the tree 

 above. The only song heard consisted of •• a few low notes" 

 which were rarely uttered, but a peculiar '^cJfecrp" was repeated 

 at frequent intervals. 



The examples before me illustrate a fact which I do not find mentioned 

 by previous writers, viz.. that during the first year the males wear a plu- 

 mage similar to that of the females. I have three in this condition; two 

 of them, although in unworn dress, are absolutely undistinguishable from 

 adults of the opposite sex; the third (No. 77). however, has the throat 

 appreciably tinged with the brownish-saftVon of the adult male. The 

 females show some variation in respect to the dusky patch on the side of 

 the head. In most of them it is confined to the auriculars. and even 

 there is much mixed with yellow; but No. 46 has a continuous, dull-black 

 stripe extending from the bill thiough the eye. and spreading over the 

 auriculars in a broad, well-marked patch. Nos. 94 and loi difter from the 

 others in having the crown so slightly washed with olive-green that the 

 whole upper surface is nearly uniform, a condition which I take to be 

 the immature one of this sex. The adult males show but little individual 

 variation. Both sexes and all ages have the basal half of the lower man- 

 dible light brown. 



44. $ ad., Morse's Mill, Chiricahua Mountains, March 14, Length. 5.10: 

 extent, 9: wing. 3.1.;; tail, .3.35; cuimen. .56; tarsus, .72. 



