BIRDS OF NORTH AND MIDDLE AMERICA 207 



brown shaft streaks; chin pale avellaneous with very narrow black 

 snaft streaks, the throat pinkish cinnamon with dusky grayish hair 

 brown shaft streaks; breast, abdomen, sides, flanks, and under tail 

 coverts pinkish cinnamon to cinnamon abundantly and narrowly 

 barred with fuscous, the ground color brightest on the lower and mid- 

 dle abdomen, the bars heaviest and darkest on upper abdomen, sides, 

 and under tail coverts; thighs orange-cinnamon barred with black; 

 axillars, lesser and median under wing coverts orange-cinnamon 

 faintly to distinctly barred with narrow dark fuscous bands; the 

 greater under wing coverts cinnamon barred with fuscous; bill black- 

 ish, paler on the mandible, darker on maxilla, cere light yellow; iris 

 pale reddish yellow to light warm brown; tarsus and toes light orange 

 yellow. 



Subadult (third year; sexes alike). — Similar to adults, but without 

 the ashy gray cast on the upper back, interscapulars, and scapulars. 



Immature (second year; sexes alike). — Forehead and superciliary 

 stripe light buff to whitish buff; crown, occiput, nape, and entire 

 back including scapulars and upper tail coverts dark fuscous to fuscous- 

 black, the nape mottled with white from the exposed bases of the 

 feathers; lesser upper wing coverts mottled with cinnamon and dark 

 fuscous and tipped broadly with fuscous; median and greater upper 

 wing coverts fuscous; less mottled with cinnamon than the lesser ones; 

 remiges as in adults, but with the orange areas paler, more whitish or 

 pale cinnamon-pink on the inner webs of the outer primaries; rectrices 

 as in adult, but with the pale area much broader and crossed by several 

 wavy blackish bands and mottled with cinnamon and white; cheeks 

 and auricuiars whitish buff with fuscous shaft streaks; chin and upper 

 throat whitish or whitish buff with black shaft streaks; lower throat, 

 breast, and abdomen whitish very heavily marked with dark fuscous, 

 the latter being the dark terminal areas (half or more of the whole 

 feather) of individual feathers; under tail coverts pale cinnamon-buff 

 barred with dark fuscous; thighs mottled with fuscous and dull 

 ferruginous to deep cinnamon; under wing coverts pale cinnamon-buff 

 to cinnamon narrowly barred with fuscous-black. 



Juvenal (sexes alike). — Similar to the immature plumage, but with 

 less cinnamon in the remiges, wing coverts, and thighs; the lesser 

 upper wing coverts as in immature, the median and greater ones plain 

 fuscous or fuscous-black; the cinnamon areas of the inner webs of the 

 outer primaries almost white; thighs fuscous obscurely mottled with 

 Natal b^o^^^l. 



A^atal down. — Not seen; no published descriptions. 



Adult male.— Wing 383-409 (400); tail 196-207 (200.5); culmen 

 from cere 23.5-26 (24.6); tarsus 90-113 (104.2); middle toe without 

 claw 41-44 (42.5 mm.) (4 specimens). 



