1892.] NATURAL SCIENCES OF PHILADELPHIA. 125 



111. Troglodytes aedonaztecus Baird. Western House Wren. 



Very common in the pine clad areas of the Catalinas where its 

 rano-e overlans that of Baird's Wren. 



112. Certhia familiaris mexicana (Glog.). Mexican Creeper. 



A few were noted in the higher pines on Mt. Lemon 7000 to 8000 

 feet. 



113. Sitta carolinensis aeuleata (Cass.). Slender-billed Nuthatch. 



Very common throughout the pines to the highest mountain tops. 



114. Sitta pygmaea Vig. Pygmy Nuthatch. 



Co-extensive with preceding species and even more abundant. 



115. Parus wollweheri (Bonap.). Bridled Titmouse. 



Abundant in the oak-belt and lower edge of pine belt. 



116. Parus gambeli Ridgw. Mountain Chickadee. 



Found on the Catalina mountains in flocks, at and above 7000 

 feet ; always in the tops of the lofty firs.^ 



117. Psaltriparus plumbeus Baird. Lead- colored Bush-Tit. 

 Found every whei'e, within the limits of the oak belt. 



118. Auriparus flaviceps (Sund.). Verdin. 



While I occasionally saw the Verdin in the fringe of the oak 

 growth, it became increasingly numerous as I neared Tucson where 

 it was abundant. 



■■•■119, Regulus satrapa olivaceus Baird. Western Golden-crowned Kinglet, 



I found a male of this species among the fir tops near the summit 

 of Mt. Lemon. It continued to utter a sweet song while I watched 

 it through my glass. 



120. Polioptila caerulea obscura Ridgw. Western Gnateateher. 



Breeds in the lower edge of the pines, not common. 



121. Polioptila plumbea Baird. Plumbeous Gnateateher. 



Common everywhere among the foot-hills and higher uplands but 

 rare in the valleys. In the lower pine belt it is replaced by the 

 other species. 



122. Turdus aonalaschkae auduboni (Baird). Audubon's Hermit Thrush. 

 These thrushes sang continuously during my ascent of Mount 



Lemon, answering each other from the opposing canons with the 



same measured cadences and pauses that characterize the song of 



1 This species does rot seem to have been previously recorded from this dis- 

 irict— \V. S. 



