BIRDS OP NORTH AND MIDDLE AMERICA. 



539 



wing, 141-170 (153.1); tail, 112.5-154 (136.3); exposed culmen, 

 10.5-14 (12); tarsus, 22-25.5 (23.7); middle toe, 17.5-21.5 (19.4)." 



Young female (iiesUing). — General color of upper parts pale brown- 

 ish gray, very minutely vermiculated or stippled with darker; pUeum 

 and scapulars with scattered roundish and subtriangular small spots 

 of black; interscapular region clouded or blotched with black; under 

 parts light grayish buff, narrowly barred with dusky on chest, more 

 broadly barred with the same on throat, breast, and sides, the abdo- 

 men and under taU-coverts immaculate; thighs uniform light fawn 

 color; remiges and rectrices (not fully grown) apparently as in adult 

 female. 



Young female (fuU grown). — Primaries and rectrices as in adult 

 female; pUeum spotted, instead of streaked, with black, the spots 

 mostly of broadly triangular form; back also heavily spotted, or 

 blotched, instead of streaked, with black; scapulars without buff 

 margins; barring of under parts much less sharply defined, less dark 

 in color; throat band light duU buff, barred with blackish. 



Tawny phase. 



Similar (in aU stages) in pattern of coloration to the gray-brown 

 phase, but general coloration of upper parts much more tawny or 

 ochraceous, the general color of the pileum varying from fawn color 

 to mars brown or russet. 



o Twenty-eight specimens. 



