KEPORT UPON ORNITHOLOGICAL SPECIMENS. 47 



*104. Empidonax flaviventris Bd., var. difficilis, Bd. Western Yel- 

 low-bellied Flycatcher. 

 Eare in pine- woods of the mountains in July. (Ridgway.) 



*105. Empidonax obscurus (Swains.) Wright's Flycatcher. 

 Common. Chiefly confined to the mountains. 



*106. Empidonax liammondii (Yesey.) Hammond's Flycatcher. 

 Less common than the preceding. Occurring in the fall. 



*107. Empidonax pusillus (Swains). Little Flycatcher. 



Especially abundant in the valleys, frequenting the willow-thickets 

 along the streams. " Breeds on the mountains up to 7,000 feet. 77 (Ridg- 

 way.) 



ALCEDINID^E (the Kingfishers). 



*108. Ceryle alcyon (L.) Kingfisher. 



Common on all the streams. Found by Mr. Ridgway in the mount- 

 ains up to 7,000 feet, 



CAPRIMULGIDJE (the Goatsuckers). 



*109. Clwrdeiles popetue (Vieill.), var. lienryi, Cass. Western Night- 

 Hawk. 



Very abundant in the valleys, and breeding in mountains up to 7,000 

 feet. 



*110. Antrostomus nuttalli (And.) Xuttall's Whippoorwill. 

 Same range as preceding, though much less numerous. 



CYPSELIDJS (the Swifts). 



*m. Panyptila saxatilis (Woodh.) White- throated Swift. 

 Not uncommon. Builds its nest in holes in limestone-cliffs. 



TROCHILID^E (the Humming-Birds).* 



*112. Trochilus alexandri, Bourc. and Muls. Alexander's Humming- 

 Bird. 

 Numerous in the valleys. " Breeds up to 8,000 feet. 77 (Ridgway.) 



*113. Selasphorus platycercus (Swains.) Broad-tailed Humming-Bird. 



Common atOgden in September. (Allen.) Exceedingly abundant in 

 Wahsatch Mountains from May to August. (Ridgway.) 



CUCULIDJE (the Cuckoos). 



114. Coccyzus americanus (L.) Yellow-billed Cuckoo. 



Heard in July at Provo. As the species breeds abundantly in 

 Arizona (Tucson, Bendire), as well as in Nevada and Sacramento Valley 

 (Ridgway), it doubtless nests in portions of Utah also. The season at 

 which it was noted renders this supposition most probable. 



* Stellula calliope (Gould). The Star-throated Hummer doubtless occurs in the 

 mountains of Utah, since it was <lsv -wed ])lcitif'ully l>y ^Ir. Kid^way in the East 

 liumboldfc Mountains, in the eastern portion of Nevada, in August and September. 



