CERTHIAD.E — THE CREEPERS. 129 



rower; the rufous of the rump is of a castaneous, instead of yellowish cast; 

 the wings appear more uniform with the hack, (jwing to the dark color of the 

 latter, and their pale markings Iiave little of tliat yellowish tinge so notice- 

 ahle in the others. In the ashy tinge of the lower parts there is a resem- 

 blance io familiaris oi Europe; but the latter has not the ochraceous cris- 

 sum so noticeable in tlie present bird. There is little resemblance to Western 

 and Rocky Mountain specimens of the C. canericana • and if these are to 

 be considered as separable from the Eastern (which, however, would not, in 

 our opinion, be advisable) they must not be referred to mexicana. 



The Mexican Creeper is introduced here on account of the probability of 

 its occurrence in the Southern Rocky Mountains. 



Habits. Mr. Salvin found the Mexican Tree-Creeper by no means un- 

 common in the pine forests of the upper zone of the Volcan de Fuego. He 

 also observed it frequenting pine-trees in the district of Chilasco, Vera Paz, 

 at about 6,000 feet above the sea. 



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