BIRDS OF NORTH AND MIDDLE AMERICA. 



657 



outer webs oi middle and greater coverts and inner secondaries broadly 

 edged with yellowish white or pale (primrose) yellow, the inner webs 

 of middle coverts edged (more or less broadhO with pale grayish olive 

 or buffy grayish, the primary coverts and primaries narrowly edged 

 with pale olive or buffy grayish; loral and auricular regions plain 

 dusky; malar and suborbital regions whitish (sometimes faintly tinged 

 with yellow), usually narrowly streaked with dusky; chin and sides 

 of throat grayish, or grayish olive, broadly streaked with dusky; rest 

 of throat white, usually more or less distinctly streaked with dusky; 

 rest of under parts, includmg axillars and under wing-coverts, prim- 

 rose or sulphur yellow, the chest broadly streaked with black or dusky, 

 the sides and flanks more narrowly streaked with the same, the axil- 

 lars with narrow shaft-streaks of dusky ; bill dusky, the basal portion 

 of mandible pale horn color (in dried skins); iris brown; legs and 

 feet dusky (in dried skins). 



Young. — Similar to adults, but upper parts more strongly tinged or 

 suffused with brownish buffy, middle and greater wing-coverts and 

 distal secondaries edged or margined with cinnamon-buff, and yellow 

 crown-patch more restricted. 



Adult male.— Length (skins), 177-215(197) ; wing, 105.5-121.5 (115.9 

 tail, 77.5-88.5 (83.3); exposed culmen, 20-23 (21.9); tarsus, 17.5-20 

 18.8); middle toe, 14-15.5 (14.4).« 



Adult female.— hength. (skins), 180-206 (193); wing, 107.5-117 

 (112.1); tail, 77-82 (79.8); exposed culmen, 19.5-23.5 (21.7); tarsus. 

 17.5-20 (19.1); middle toe, 13-16 (14.6).'' 



" Twenty-eight specimens. 

 b Twenty-two specimens. 



As a rule specimens from Guatemala and southward have the chest and throat more 

 heavily streaked and the bill smaller than those from Mexico, examples from Chiapas 

 being, on the whole, more like Central American ones; but the difference seems too 

 inconstant to warrant subspecific separation, 

 11422— VOL 4—07 42 



