BIBDS OF NORTH AKD MIDDLE AMERICA. 661 



AauOt female— Ij^ngih. (skins), 120-126 (123); wing, 58-60 (59); 

 tail, 49-50 (49.5); exposed culmen, 19; tarsus, 17-18 (17.5); middle 

 toe, 13-14 (13.5). (Two specimens). 



SPECIMENS PKOM SOUTHERN CALIFOENIA. « 



Adult male.— LQngt\i (skins), 121-131 (127.7); wing, 58.5-61 (59.8); 

 tail, 50-62 (51); exposed culmen, 20-22.5 (21.2); tarsus, 17-18.5 (17.8); 

 middle toe, 13. (Three specimens.) 



Adult female. — Length (skin), 128; wing, 57.5; tail, 49; exposed 

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



SPECIMENS PKOM LOWER CALIPORNIA. '' 



Adult male.—hengt\x (skins), 120-131 (125.5); wing, 58.5-59.6 (59); 

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

 toe, 13-13.6 (13.2). (Two specunens.) 



Adult female. — Length (skin), 122; wing, 66; tail, 49; exposed cul- 

 men, 18.5; tarsus, 16; middle toe, 12.5. (One specimen.) 



SPECIMENS PROM SONORA. « 



Adult TOaZ<s.— Length (skins), 122-132 (128.2); wing, 60-64(61.4); 

 tail, 50-62.6 (51.4); exposed culmen, 18.5-22 (20.7); tarsus, 18-20 (19); 

 middle toe, 13.5-16 (14.1). (Five specimens.) 



Adult female.— l^ength (skins), 125.6-128 (126.6); wing, 56-60 (58.5); 

 tail, 47.5-51.5 (49.3); exposed culmen, 16.6-20 (18.3); tarsus, 17-18.5 

 (17.7); middle toe, 13-14 (13.6). (Five specimens.) 



SPECIMENS FROM CHIHUAHUA.'' 



Adult male.— Li%ngt\x (skins), 126-139 (131.6); wing, 60.5-64 (62.3); 

 tail, 49.6-63 (50.9); exposed culmen, 21.6-22 (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 Rafael, Batopilas, etc.). 



This is not a clearly defined 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. 

 6 Oape St. Lucas district. 



<^ Mostly from Alamos, in the southern part, there being besides only one male from 

 Oposura, and two females, one from Oposura, the other from Pachuca. 

 <* All but two (these from Batopilas) being from Hacienda San Rafael. 



