BIRDS OF NORTH AND MIDDLE AMERICA. 129 
iddle rectrices fading into white on lateral rectrices, all the rectrices 
ccept outer pair with a subterminal dusky area; bill black terminally, 
‘ange or orange-yellow basally; iris dark brown; legs and feet 
range-yellow (in life). 
Adult female in summer.—Similar to the male and not always dis- 
nguishable, but usually (2) with the black crown-band and jugular 
-eas more restricted and duller black. 
Winter plumage.—Similar to the summer plumage but without 
lack on fore part of crown and lateral jugular es light brownish 
ray instead of black. 
Young.—Similar to the winter plumage but feathers of upper 
arts margined with pale buff or whitish. 
Downy young.—F orehead, superciliary, loral, suborbital and malar 
sgions, nuchal collar and under parts immaculate white; crown and 
ceciput pale grayish buffy with a few small and narrow, mostly longi- 
idinal, markings of dusky brown; back, rump, etc., pale grayish 
uffy, sparsely marked with irregular zig-zag lines of dusky brown, 
ae sides of rump with an ill-defined longitudinal patch of dark 
rown; anterior portion of wing pale grayish buff with a rather large 
lotch of dusky brown, the posterior portion, and whole of hand- 
‘ing, immaculate white. 
Adult male.—Wing, 113-124 (116.7); tail, 47.5-55 (50.6); culmen, 
1.5-18.5 (12.6); tarsus, 20.5-23.5 (21.8); middle toe, 14-15.5 (14.8).4 
Adult female Wing, 112-121 (114.2); tail, 47-51 (48.7); culmen, 
1-13 (11.9); tarsus, 20.5-22.5 (21.2); middle toe, 14-16 (14.4).® 
a Twenty specimens b Hight specimens. 
Locality. Wing. | Tail. pile Tarsus. Middle 
MALES, 
ne adult male from Gulf of St. Lawrence (Amherst Island)..] 116 50 11.5 23 15 
wo adult males from Massachusetts 117.5 51 11.7 22 15 
ne adult male from Long Island.................- weal 128 50 11.5 21 15 
ree adult males from New Jersey............- ----| 117 48.8 12.5 22.2 14.7 
oe adult male from South Carolina............22-..20- eee eee 116 52.5 13.5 20.5 14.5 
1e adult male from Saskatchewan (Lake Winnipeg).......... 114 51.5 12 21 15 
ie adult male from Wisconsin.............2... ee eec eee enone 116 50 13 20.5 14 
yur adult males from Wyoming..............-.ceseceeeeeeeee 119.5 51.9 12.6 22.2 15 
1e adult male from South Dakota.................eeee scene ee 118 52 13 22 15.5 
ve adult male from Texas. ............. cee eee ce eee eee eeeeenee 116 49 12.5 21.5 15 
FEMALES, 
16 adult female from Gulf of St. Lawrence (Amherst Island).| 113.5 48 11 21 14.5 
1e adult female from Massachusetts.........-..-22--eeeeeeeee 121 50 12 20.5 14 
16 adult female from Long Island 116 49 11.5 22.5 16 
16 adult female from New Jersey............ seve] A115 50 11.5 22.5 14.5 
1e adult female from Virginia............... exe] 113 47 12.5 21 14.5 
vo adult females from Wisconsin..............--.eeee eee eee 113 49 12.5 21 14.7 
te adult female from Wyoming.............2..- see cece eee eee 118 48 12 21 14.5 
40017—19—Bull. 50, pt S——10 
