GEN. 53-58 OF KEY. 27 



131. VIREO BELLII AUD. 



Bell's Vireo. 



132. VIREO PUSILIiUS COUES. 



!Least Tireo. 



133. VIREO ATRICAPILLUS WOODH. 



JBlack-headed Tireo. 



134. COLLURIO BOREALIS (V.) BD. 

 Great Northern Shrike; Butcherbird. 



135. COLLURIO LUDOVICIANUS (L.) BD. 



XiOgrgrerliead Shrike. 



135a. COLLURIO LUDOVICIANUS (L.) BD., 

 var. EXCUBITOROIDES (Sw.) Cs. 



136. HESPERIPHONA VESPERTINA (Coop.) BP. 

 veningr Grosbeak. 



- 137. PINICOLA ENUCLEATOR (L.) V. 

 Pine Grosbeak. 



[138.]? PYRRHULA CASSINI (BD.) TRISTR. 

 Cassin's Bullfinch. 



^ 139. CARPODACUS PURPUREUS (Gif.) GR. 

 Purple riiu'ii. 



HO. CARPODACUS CASSINI BD. 

 Cassin's Purple Finch. 



HI. CARPODACUS PRONTALIS (SAY) GR. 

 Crimson-fronted Finch; House Finch. 



141a.* CARPODACUS PRONTALIS (SAY) CAB., 

 var. HJEMORRHOUS (Wagl.) Ridg. 

 Mexican Purple Finch. 



*Not in the Key. See Ridgway, Am. Jour. Sci. Art, v, p. 39. 



