136 Brewster on a Collection of Arizona Birds. 
ber, 1874. Accordingly the acquisition of the fine series cata- 
logued below can scarcely fail to be a matter of much interest. 
As will appear from the accompanying data, Mr. Stephens met 
with the bird in only a single locality in the Chiricahua Mountains 
where it was apparently not uncommon in March : but he writes 
of a previous specimen (an adult male) taken among the Santa 
Catarina Mountains, in February, 1880, a date which seems to 
imply that the species winters in the latter range. His observa- 
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 side’s at an elevation 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. Stephens of Dendroeca occidentalis. 
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 filled. Oc- 
casionally 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 heayd consisted of ‘‘a few low notes” 
which were rarely uttered, but a peculiar 14 cheer ft” 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-saffron 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 101 differ 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. 3.12; tail, 2.35; culmen, .56; tarsus, .72. 
