BIRDS OF NORTH AND MIDDLE AMERICA. 



553 



brown, the former distinctly, the latter indistinctly, barred with dusky; 

 primaries dusky, their outer webs edged and spotted with pale brown- 

 ish; upper tail-coverts and middle rectrices brownish gray, the latter 

 distinctly, the former indistinctly, barred with dusky; a conspicuous 

 and sharply defined superciliary stripe of white or buffy white extend- 

 ing to sides of occiput, the anterior (supraloral) portion narrower and, 

 usually, more grayish; a broad brown postocular stripe, occupying 

 upper half (approximately) of auricular region; suborbital region and . 

 lower portion of auricular region grayish white, the latter more or 

 less distinctly streaked with brown; under parts dull grayish white or 

 very pale gray, becoming more decidedly white on abdomen, the sides 

 and flanks more or less tinged with brown; under tail-coverts dull 

 white broadly barred with black; maxilla dusky horn color or black- 

 ish with paler tomia; mandible pale horn color basally, more or less 

 extensively dusky terminally; iris brown; legs and feet brownish or 

 horn color. 



Adults in OMUmnn or winter. — Similar to the spring and summer 

 plumage but more brightly colored, the upper parts more chestnut- 

 brown, middle rectrices browner (broccoli brown to light bistre), sides 

 and flanks more strongly tinged with brown, the under tail-coverts 

 with ground color brownish white or pale buffy brown. 



Young. — Similar to adults, but ground color of middle rectrices 

 brown, like back, etc., feathers of chest (sometimes throat also) more 

 or less distinctly margined or edged with grayish or dusky, and under 

 tail-coverts more brownish and less distinctly barred. 



AduUmale.— Length (skins), 110-129 (113.2); wing, 51-51 (54.1) ; tail, 

 48-56 (52.3); exposed culmen, 12.6-14 (13.4); tarsus, lY-18.5 (17.9); 

 middle toe, 11.5-13 (12.4). « 



Adult femule.— Length (skins), 113-129 (117); wing, 51-53.5 (52.2); 

 tail, 48.5-58.5 (61.5); exposed culmen, 13-14.5 (13.6); tarsus, 17-18.5 

 (17.4); middle toe, 11.5-13 (12. 2). » 



"Twenty specimens. 

 6 Eight specimens. 



Specimens from Atlantic States compare in average measurements witli tliosefrom 

 the Mississippi Valley as follows: 



Locality. 



Wing. 



Tall. 



Ex- 



.)Ose 



culmen. 



Middle 

 toe. 



MALES. 



Ten adult males from Atlantic States (District of Columbia 

 to Florida) 



Ten adult males from interior (Illinois to Tennessee) 



FEMALES. 



Six adult females from Atlantic States (Pennsylvania to 



Florida) 



1'vfo adult females from eastern Texas 



54.8 

 53.4 



52.4 

 51.5 



53 

 51.5 



51.3 

 52 



13.4 

 13.4 



13.7 

 13.5 



18 

 17.8 



17.4 

 17.5 



12.6 

 12.2 



12.1 

 12.7 



