724 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



ventral bar; a third and very much smaller black transverse mark, 

 often hidden by the overlapping feathers, marks the lateral termina- 

 tion of the nape; breast, upper abdomen, sides, and flanks varying 

 from light pinkish cinnamon to cinnamon, sometimes practically im- 

 maculate, sometimes with a very variable number of tear-shaped spots 

 of black, the spots largest on the sides and flanks, smallest and fewest 

 on the lower breast and upper midabdomen ; lower abdomen, thighs, 

 and under tail coverts white slightly suffused with buff to pale warm 

 buff; under wing coverts white to very pale cartridge buff, spotted 

 wT^th black; iris dark brown; cere, orbits, tarsi, and toes from deep 

 cadmium to reddish orange; claws black. 



Adult female. — Entire head (top, sides, and lower surface) as in 

 male, but the chestnut feathers of the crown usually with slate shafts; 

 scapulars, interscapulars, back, rump, upper wing and tail coverts 

 pecan brown to pale mikado brown barred with dark chaetura drab 

 to chaetura black, the dark bars and the brown interspaces about 

 equal in width except on the rump and upper tail coverts where the 

 blackish marks are much narrower; primaries as in the male, but 

 the whitish areas heavily tinged with pecan brown; secondaries 

 as in the male, but with the slate replaced by pecan brown and the 

 white areas tinged with the same; tail like the upper back, but 

 slightly more hazel, crossed by a subterminal (5-10 mm.) and 9 to 11 

 narrower black bands, the outer web of the outermost pair irregularly 

 edged with whitish; throat, white; rest of underparts white to pale 

 cartridge buff, the breast, sides, flanks, and upper abdomen streaked 

 with fairly pale tav/ny-olive to pale Saccardo's umber; thighs, lower 

 abdomen, and under tail coverts immaculate; under wing coverts 

 white to pale cartridge buff transversely spotted and incompletely 

 and irregularly barred with pale tawny-olive to pale Saccardo's umber; 

 soft parts as in male, the cere, orbits, tarsi, and toes usually slightly 

 paler, more yellowish, less orange. 



Juvenal male. — Similar to the adult male, but with the black bars 

 on the scapulars and upper back averaging broader and more numerous 

 and with the breast and upper midabdominal spots replaced by 

 short, narrow, streaks, and the feathers of the crown and occiput 

 usually with dark shafts; soft parts as in adult female, but usually 

 still paler, the tarsi and toes often dull ocher yellow. 



Juvenal female. — Similar to the adult female, but the ventral streaks 

 darker, Saccardo's umber to pale sepia, and with the under surface 

 usually washed with pale ochraceous; soft parts as in juvenal male. 



Natal down. — White. 



Adult male. —Wm^ 174-198 (183.1); tail llG-142 (129.4); culmen 



