What two pale markings are noticeable on the wings of the White-crowned Sparrow?

Answer

Two noticeable pale wing bars formed by coverts

Beyond the head pattern, specific features on the wings aid in confirming the identity of the White-crowned Sparrow. The wings display two noticeable pale wing bars. These bars are formed by the tips of the median and greater coverts, which are feathers located on the wing surface. These bars usually appear whitish or buffy in tone, creating a distinct visual contrast against the surrounding, generally darker wing feathers, and they can catch the light even when the bird is partially concealed.

What two pale markings are noticeable on the wings of the White-crowned Sparrow?
birdornithologywildlifeappearanceSparrow