Adult: black-and-white striped crown. Immature: tan and brownish head stripes. Juvenile: Brown and buff head; streaked underparts. The white-throated sparrow has a dark bill, prominent white ...

Meet the white-crowned sparrow and white-throated sparrow. This bird constructs a well-hidden ground or low nest of grasses, weed stems, leaves and bark fibers lined with finer materials.

The male house sparrow has ... cheeks and a black bib. It nests in man-made cavities, including streetlights and gas station roofs (and often competes with bluebirds for nest boxes).