1892.] NATURAL SCIENCES OF PHILADELPHIA. 123 



especially in its fondness for the tops of the highest evergreens. 

 The song is noticeably different from that of our eastern bird, 

 despite a resemblance. 



*90, Vireo bellii pusillus (Coues). Least \'ireo. 



■ The Least Vireo was found sparingly in the chaparral of vacant 

 lots around Tucson and in similar places in the Santa Clara 

 Valley. Independently of the taxonomic differences which may 

 warrant Mr. Ridgway's claim to full specific rank for this Vireo, 

 there is nothing in its song or habits to support this position. 



91. Vireo vicinior Coues. Gray Vireo. 



Frequent in the oak-woods and nowhere else, 



92. Helminthophila luciae (Cooper). Lucy's AVarbler. 



Abundant from Tucson upward to a few hundred feet above 

 Oracle. 



93. Helminthophila virgin! 36 (Baird). Virginia Warbler. 



Little companies of this species frequented the deciduous trees in 

 the lower edge of the Pine-belt, reminding me in their habits of 

 the Bush Tits and Titmice with which they associate. 



*94. Dendroica olivacea (Giraud.). Olive Warbler. 



I saw one of these birds in the mountains but failed to secure it. 

 It was in full view and its peculiar habit of perching on the 

 large pines branches near the trunk, its deliberate movements and 

 characteristic markings, examined with a glass at short range, con- 

 vince me of the correctness of my identification. 



95. Dendroica aestiva sonorana Brewst. Sonora Yellow AVarbler. 

 Plentiful around Tucson in the valley but seen nowhere else.' 



96. Dendroica auduboni (Towns.). Audubon's Warbler. 



Not rare in the Catalina among the pines. 



97. Dendroica graciae Coues. Grace's Warbler. 

 Abundant in the pines. 



98. Dendroica nigrescens (Towns.), Black-throated Gray Warbler. 

 Abundant in the pines, 



1 A young bird of this race in the collection is silky white beneath, with the 

 lores and sides of the throat light yellow ; above gray, the lesser wing coverts and 

 rump yellow-olive, greater wing coverts edged with buff, wings and tail as in adults. 

 The specimen was evidently moulting, as yellow pin feathers are to be seen here 

 and there on the breast. — W. S. 



