BIRDS OF NORTH AND MIDDLE AMERICA. 27 " 



CATHARUS OCCIDENTALIS FULVESCENS Nelson. « 

 FULVOUS NIGHTINGALE THRUSH. 



Similar to C. o. occidentaUs, but upper parts slightly less rufescent, 

 the back, etc., more olivaceous (more nearly raw umber) ; under parts 

 slightly paler, with sides and flanks usually clearer (less olive or buffy) 

 grayish. 



Adult 7nale.—ljength (skins), 157-170 (167); wing, 85.5-96.5 (89.7); 

 tail, 78-89 (78.8); exposed culmen, 18-15 (18.7); tarsus, 31-33 (32.1); 

 middle toe, 17-18.5 (17.4)." 



Adult female.— Ijengih (skins), 154-171 (162); wing, 79.5-88.5 

 (83.2); tail, 68.5-76 (71.7); exposed culmen, 14-15.5 (14.3); tarsus, 

 80-88.5 (31.1); middle toe, 16.5-18.5 (17.6).^' 



Mountains of southwestern Mexico, in States of Mexico (Ameca- 

 meca; Ajusco, Federal District; Volcan de Toluca), Hidalgo (El 

 Chico), Morelos (Tluitzilac), Guerrero (Chilpancingo; Omilteme), 

 Michoacan (Mount Tancitaro), and Jalisco (San Sebastian; Sierra 

 Madre de Colima) . 



Cathanift occidentalis fnlvescens Nelson, Auk, xvi, .Jan., 1897, 75 (Amecameca, 

 Mexico, Mexico; coll. U. S. Nat. Mus.). 



CATHARUS OCCIDENTALIS OLIVASCENS (Nelson). d 

 OLIVE NIGHTINGALE THRUSH. 



Much grayer above than C. o. fulvescens, the pileiun varying from 

 deep wood brown or Isabella color to between wood brown and cinna- 

 mon, the back, etc., from Isabella color to broccoli l^rown; under parts 

 averaging slightly paler. 



Adult male.— 'Length (skins), 162-173 (168); wing, 87-96.5 (92.2); 

 tail, 73.5-82 (77.3); exposed culmen, 13.5-14.5 (14.3); tarsus, 30-33 

 (31.5); middle toe, 18.5-19.5 (18.8).^ 



Adult female. —Length, (skins), 160-166 (162); wing, 85-89 (87.2); 

 tail, 72-75.5 (73.1); exposed culmen, 14.5-15 (14.7); tarsus, 30-32 

 (30.7); middle toe, 17-19 (18).^ 



Northwestern Mexico in State of Chihuahua (Sierra ]\Iadre; Colonia 

 Garcia; Pinos Altos; Jesus Maria; Bravo). 



Catharus olivascens Nelson, Proc. Biol. Soc. Wash., xiii. May 29, 1899, 31 (Sierra 



Madre, Chihuahua, 65 miles e. of Batopilas; coll. U. S. Nat. Mus.). 

 [Catharus] olivascens Sharpe, Hand-list, iv, 1903, 181. 



«■ Like C. melpomene clarus, a rather unsatisfactory subspecies. 

 b Eleven specimens, 

 c Seven sj^ecimens. 



d A very strongly marked subspecies, but I can see no reason for considering the 

 form specifically distinct from C. occidentalis. 

 c Four specimens. 



