BIK1>S OF NOKTH AND MIDBLK AMERICA. 00 1 



Aftult femal,'. — lj ngi\\ (skins), 120-120 (123); wing, 58-60 (5'.»): 

 tail, -19-50 (1:9.5); exposed culmcn, 19; tarsus, 17-18 (17.5); middle 

 toe, 13-1-1 (13.5). (Two specimens). 



SPECIMENS FRO.\[ SOUTHERN CALIFORNIA. « 



Adult male. —hQxigih (skins), 121-131 (127.7); wing, 58..5-61 (59.8): 

 tail, 50-52(51); exposed culmen, 20-22.5 (21.2); tarsus, 17-18.5 (17. s); 

 middle toe, 13. (Three specimens.) 



A(h (It female. — Length (skin), 128; wing, 57.5; tail, 49; exposed 

 cuhnen, 20.5; tarsus, 17; middle toe, 13. (One specimen.) 



SPECIMENS FROM LOWER CALIFORNIA. ^ 



Adult ma^6^— Length (skins), 120-131 (125.5); wing, 58.5-59.5 (59); 

 tail, 51; exposed culmen, 20-22 (21); tarsus, 17.5-18 (17.7); middle 

 toe, 13-13.5 (13.2). (Two specimens.) 



Ad ult female. — Length (skin), 122; wing, 56; tail, -19; exposed cul- 

 men, 18.5; tarsus, 16; middle toe, 12.6. (One specimen.) 



SPECIMENS FROM SONORA. <^ 



Adult m«^^.— Length (skins), 122-132 (128.2); wing, 60-64(61.1); 

 tail, 50-52.5 (51.4); exposed culmen, 18.5-22 (20.7); tarsus, 18-20 (19); 

 middle toe, 13.5-15 (14.1). (Five specimens.) 



Adultfemale.—ljimgih (skins), 125.5-128 (126.6); wing, 56-60 (58.5); 

 tail, 47.5-51.5 (49.3); exposed culmen, 16.5-20 (18.3); tarsus, 17-18.5 

 (17.7); middle toe, 13-14 (13.5). (Five specimens.) 



SPECIMENS FROM CHIHUAHUA.'^ 



Adult male.— h^ngih (skins), 125-139 (131.6); wing, 60.5-64 (62.3); 

 tail, 49.5-53 (50.9); exposed culmen, 21.5-22 (21.8); tarsus, 18-19.5 

 (18.6); middle toe, 13-15 (14.2). (Seven specimens.) 



Adult female. — Length (skin), 132.5; wing, 56; tail, 49; exposed 

 culmen, 21; tarsus, 18; middle toe, 14. (One specimen.) 



Southwestern border of United States, from Texas (east to Stephens, 

 Eastland, Bosque, and Bexar counties) through New Mexico and 

 Arizona to southern California (San Bernardino and San Diego coun- 

 ties), and southward into Lower California (to the Cape district), 

 Sonora (near Oposura, Pachica, Alamos, etc.) and Chihuahua (Bravo, 

 Jesus Maria, Hacienda San Hafaol, Batopilas, etc.). 



This is not a clearly delined form, like the others here recognized, 

 but rather a variable series of intermediates, segregated for nomen- 

 clatural convenience. Examples from Arizona and southward to 



«San Bernardino and San Diego counties. 



''Cape St. I.ucas district. • 



'■ ^lostly from Alamos, in the southern part, there being beside." only one male from 

 Oposura, anil two females, one from Oposura, the other fn)m rachuca. 

 ''All hut two (these from r>at<i|)ilas ) being from Hacienda San Kafael. 



