22 PACIFIC COAST AVIFAUNA No. 10 



miles southwest of Tucson ( Bendire, 1892, p. 18). It ranges up the valley of 

 the Santa Cruz River to a point some thirty miles south of Tucson ; along the 

 western base of the Santa Rita Mountains it reaches a little farther north. It is 

 abundant on the east side of the Santa Ritas and in the valley of the San Pedro 

 River from the Mexican boundary line to the cast slope of the Santa Catalina 

 Mountains. The northernmost points of record are Fort Grant ( Henshaw, 1875b. 

 p. 442), Picacho Station, on the Southern Pacific railroad, this probably an ex- 

 treme, possibly an unusual, extension of range (Brewster, 1883, p. 33), and the 

 Gila River near Clifton (Bendire. 1892, p. 18). 



Although the character of country inhabited by this species and Lophortyx 

 gambcli is very similar, there are but few points where the two occur together, 

 and where this occurs one or the other is usually greatly in preponderance. 



79. Lophortyx gambeli Gambel. 



Desert Quail. 



Synonyms — Callipcpla gambeli; Lophortyx calif ornicus. 



Status — Though most abundant in the valleys of the lower Colorado and 

 the Gila rivers, this species is quite generally distributed, in the lowlands, 

 throughout the southern and western two-thirds of the state. It is not known 

 to occur in the northern plateau region, north of Fort Apache and the Mogollon 

 Mountains and east of Bill Williams Mountain and Cataract Canon ; and until 

 recentlv it was very rare in the extreme southeastern corner of the state, the 

 southern half of Cochise County. Of late years has become much more common 

 in the vicinity of Tombstone and the Dragoon Mountains. Occurs in the latter 

 range up to 5000 feet ( F. C. Willard, MS). 



80. Cyrtonyx montezumae mearnsi Nelson. 



Mearns Quail. 



Synonyms — Cyrtonyx massena; Cyrtonyx montezumae; Fool Quail. 



Status — Found in the Upper Sonoran and Transition of central and south- 

 eastern Arizona. It has been recorded from the following mountain ranges: 

 Chiricahua, Huachuca. Carmelita, Patagonia. Santa Rita. Whetstone. Rincon, 

 Santa Catalina, Pinal, White and Mogollon mountains. The most northern and 

 western record is from the vicinity of Fort Whipple. The range is thus very 

 "spottv" and broken, the intervening valleys between the various ranges being, 

 for the most part, entirely unsuited to the species. The vertical range is from 

 4000 to 9000 feet. 



81. Dendragapus obscurus obscurus (Say). 



Dusky Grouse. 



Synonym — Canacc obscurus. 



Status— Common in the White Mountains (Mearns, 1890a. p. 52). There 

 is a record of a single bird seen on San Francisco Mountain (Merriam. 1890, p. 

 89). 



