What colors characterize the head stripes of an immature White-crowned Sparrow?

Answer

Rusty brown and grayish-tan

Immature birds lack the crisp adult markings; instead of black and white, their head stripes are a mixture of rusty brown and grayish-tan.

What colors characterize the head stripes of an immature White-crowned Sparrow?
birdappearancefemaleWhite-Crowned Sparrowmale