VALLEY PARTRIDGE. 61 
whitish; the female is conspicuous beneath by the amount of 
white exhibited, and like the male she is lighter in color than the 
corresponding sex of the typical form; there are no black or 
white markings on the head. 
Young, Half Grown.—¥orehead, bluish gray, streaked with 
white ; feathers margined with black, rest of head on top, dark 
rusty brown; short crest, rusty brown, black in center; back of 
neck, bluish gray, vermiculated with light brown, rest of back 
bluish gray, feathers margined with blackish brown; wings, 
rusty brown, barred and vermiculated with black; sides of head 
and throat, buff, streaked with bluish gray; breast pale bluish- 
gray; rest of under parts, buffy white, indistinctly barred with 
bluish gray; tail blue, barred and mottled on edge of webs with 
black. 
