930 U.S. NATIONAL MUSEUM BULLETIN 237 paet 2 



The reports of Visher (1910) on this, A. carpalis, and other birds 

 are obviously erroneous. 



Distribution 



Range. — Scott's rufous-crowned sparrow is resident from central 

 northern and eastern Arizona (Grand Canyon, Fort Apache) and 

 southwestern New Mexico (Catron County) south to central southern 

 Ai'izona (Ajo and Baboquivari mountains), northeastern Sonora 

 (Rancho La Arizona; La Chumata), and northwestern Chihuahua 

 (Babicora) . 



Egg dates. — Arizona: 4 records, June 14 to August 15. 



AIMOPHILA RUFICEPS RUPICOLA van Rossem 



Harquahala Rufous -crowned Sparrow 

 Contributed by Allan R. Phillips 



Habits 



This race was described from the Harquahala Mountains, Ariz.; 

 van Rossem (1946b) says it is: 



Similar in size and proportions to Aimophila ruficeps scottii * * * but coloration 

 everywhere grayer and darker. Dorsal edgings, together with rump, "Deep 

 Grayish Olive" instead of "Light Grayish Olive"; chest, sides, and flanks, "Olive- 

 Gray" instead of "Smoke Gray"; chin, throat, and median under parts darker, 

 grayer (less buCfy white), and in distinctly less contrast to the pectoral region and 

 sides; crown and reddish brown areas of feathers of the upper parts darker; dorsal 

 streaking narrower with gray edgings correspondingly broader. 



A. R. Phillips and W. M. Pulich (1948) referred 10 specimens from 

 the Ajo Mountains, also in western Arizona, to rupicola. In fact, all 

 of the material that I have seen from western Arizona, and some from 

 western Sonora (the Sierra San Antonio-Sierra Aconchi area) seems 

 to be dark. In any case, rupicola is not a strongly marked race; it 

 is doubtful that its life history differs significantly from that of scottii. 



Distribution 



Range.- — The Harquahala rufous-crowned sparrow is resident in the 

 Harquahala Mountains of western Arizona, 



