270 SINGIXO BIRDS— OSCIXES. 



greenisli-yollow het%vocn tlio wliito and black ; a few, perhaps, without blaek tips. Tlio 

 bases of the third to seventh printaries, and tlie ends of tlie tertiaries, externally wliite. 

 Tlic tail is blaek, except the outer three feathers, in which the outer webs and ti])3 (jnly 



Chrijsomilris Mfrtrnna. Male. 



arc this color ; the rest white. Inside of wins; black. Under parts of liody p.nle yellow. 

 Female with the blaek of the head and body replaced by olive-green. Length, 4 12; 

 wing, 2.25 ; tail, 2.00. 



Hab. Mexican side of the valley of the Uio Grande, southward. 



A'ar. Arizonge, Couks. 



diri/somitris Mexicanus, var. Arizona, CouES, Pr. A. N. So. 1S66, 81. 



Sp. Char. Dilfers from above in a decided gradation towards C psaltria. The black 

 of the back is mixed with about an e(iual amount of olive. Tlie auriculars are blaek as in 

 Jilexicanux, but the yellow lower eyelid, like that of psallria, is not disconnected with the 

 yellow of the throat. (Coues.) 



Hah. Arizona. 



Tlie Arizona variety of C. Mexicanus, pointed out a.s above hy Dr. Cone.s, 

 i.s .strongly related to C. xisaltria, in which, however, the top of the head i.s 

 l)lack, distinctly bounded on all sides witli olive, and the black does not 

 descend below the eye, as in Mexicanus. The liack also is distinctly oli\-e, 

 not mixed with Ijlack. "We have no special information as to its liabits, 

 Init tliey are probably much like those of the common thistle-bird (C. tris- 

 tis) of the United States. (Baird.) 



