36 PACIFIC COAST AVIFAUNA No. 10 



146. Antrostomus vociferus macromystax (Wagler). 



Stephens Whip-poor-will. 



Synonyms — Antrostomus vociferus; Antrostomus vociferus arisonae. 



Status — A fairly common summer visitant in some of the higher mountains 

 of southeastern Arizona. Found in high Upper Sonoran and Transition zones in 

 the Chiricahua, Santa Rita. Graham, Huachuca and Whetstone mountains. Re- 

 ported once from the Santa Catalina Mountains, in April (Scott, 1886, p. 429). 



147. Phalaenoptilus nuttallii nuttallii (Audubon). 



POORWILL. 



Synonyms — Caprimulgus nuttallii; Antrostomus nuttallii; Phalaenoptilus 

 n ut t alii nit id us. 



Status — A common summer visitant throughout the state. Definite breed- 

 ing records from Arizona are rare, but the birds have been taken or observed in 

 the breeding season in Lower Sonoran, Upper Sonoran, and the lower part of 

 the Transition zone. It has been found in December in the vicinity of Tucson 

 ( Bendire, 1895, p. 153). 



148. Chordeiles virginianus henryi Cassin. 



Western Nighthawk. 



Synonyms — Chordeiles virginianus; Chordeiles popetue; Chordeiles henryi, 

 part; Chordeiles popetue henryi. 



Status — Common summer visitant of the higher mountains throughout the 

 state : Flagstaff, Fort Whipple, San Francisco Mountain, Hualpai Mountains, 

 Keam Canon, Whetstone Mountains, Huachuca Mountains. Apparently does not 

 occur below Upper Sonoran, even in the migrations. Has not been observed any- 

 where in southwestern Arizona. 



149. Chordeiles acutipennis texensis Lawrence. 



Texas Nighthawk. 



Synonyms — Chordeiles texensis ; Chordeiles henryi, part. 



Status — An abundant summer visitant of the Lower Sonoran zone in south- 

 ern and western Arizona. In the eastern part of the state it apparently does not 

 occur north of the Gila River; in the west it extends to a point some fifty miles 

 south of Fort Whipple (Cones, 1866a, p. 58), and, along the valley of the Col- 

 orado River, quite to the northern boundary of the state: mouth of Beaverdam 

 Creek (Fisher, 1893b, p. 53). 



150. Chaetura vauxi (Townsend). 



Vaux Swift. 



Synonym — Aeanthylis pelasgia. 



Status — Apparently a rare migrant in Arizona ; has been observed at but a 

 few points. Seen in the Santa Catalina Mountains in October (Scott. 1886, p. 

 429), at the Pima Indian Reservation on the Gila River, in September (Bren- 

 inger, 1901a, p. 45), in the Huachuca Mountains in May (Swarth, 1904b, p. 

 16), and along the Colorado River at Potholes, Yuma, and Pilot Knob, in April 

 and May (Mus. Vert. Zool.). 



