BIEDS OF NORTH AND MIDDLE AMEEIOA. 303 



Highlands of central Chiapas, southeastern Mexico (San Cristobal, 

 etc.). 



Junco fiUvescens Nelsox, Auk, xiv, January, 1897, 61 (San Cristobal, Chiapas, 

 s. e. Mexico; U. S. Nat. Mus. ). 



JUNCO ALTICOLA Salvin. 

 GUATEMALA JTJNOO. 



Similar to J. fulvescens, but decidedly larger (except the bill) and 

 colors much darker. 



Adults (sexes alike). — Pileum and hindneck uniform dull slate-color 

 or dark mouse gray; sides of head and neck similar, changing to lighter 

 gray (smoke gray) on malar region, throat, chest, and anterior por- 

 tion of sides; breast paler gray, fading into dull white on abdomen; 

 flanks light olive, tinged with buff posteriorly; under tail-coverts 

 light grayish olive or hair brown broadly margined with pale dull 

 buffy; lores black; anterior portion of chin (very narrowly) dusky; 

 back and scapulars olive-brown, more or less tinged with more rusty 

 brown; smaller wing-coverts and rump olive, the upper tail coverts 

 grayish olive; outer surface of greater wing-coverts and tertials rusty 

 brown or russet; wings otherwise dusky, with dull grayish or grayish 

 olive edgings, lighter and more distinct on outermost primaries, the 

 edge of first primary almost white; eight middle rectrices dusky, 

 edged with grayish olive; outermost rectrix with terminal half (more 

 or less') of inner web white, the outer web mostly dusky grayish; 

 second rectrix with terminal third (approximately) of inner web white; 

 maxUla black, mandible yellowish, sometimes dusky at tip or base; 

 iris yellow; legs and feet light yellowish brown, the tarsi usually paler. 



Adult male-^hength (skins), 152.40-171.70 (160.53); wing, 73.91- 

 79.25 (76.71); tail, 65.79-75.41: (69.60); exposed culmen, 12.70-13.72 

 (13,21); depth of bill at base (three specimens), 7.62-8.13 (7.87); tarsus, 

 22.86-25.15 (24.38); middle toe, 14.99-17.02 (16.00).' 



Adult female.—Lengthiakma), 148.59-170.69 (156.72); wing, 71.12- 

 73.41 (72.14); tail, 62.99-74.17 (67.82); exposed culmen, 12.19-13.46 

 (12.95); depth of bill at base (one specimen), 7.87; tarsus, 23.11-24.13 

 (23.62); middle toe, 15.2^16.76 (15.76).' 



Highlands of Guatemala (Volcan de Fuego, Volcan de Agua, Vol- 

 can de Santa Maria, Hacienda Chancol, Todos Santos, Altos, Calel, 

 Quezaltenango, Totonicapan, etc.). 



Junco alticola Salvin, Proc. Zool. Soc. Lend., 1863, 189 (pine forests of Volcan 

 de Fuego, Guatemala, 8,000 ft.; coll. Salvin and Godman); Ibis, 1866, 193 

 (Volcan de Agua, V. de Fuego, Quezaltenango and Totonicapan, Guate- 



■^In males usually more, in females usually less. 

 ^ Seven specimens. 



