Golden-crowned Sparrow

The Golden-crowned Sparrow (Zonotrichia atricapilla) is a large, elegant sparrow native to western North America. It is a close relative of the White-crowned Sparrow, sharing its chunky build and social habits. During the summer, it breeds in the rugged subalpine shrublands of Alaska and northwestern Canada. In the winter, it migrates in large numbers to the Pacific Coast, becoming a highly familiar and welcome visitor to brushy fields, chaparral, and backyard bird feeders. Its sweet but plaintive whistled song is a hallmark of western winter mornings.

Recognizing the Golden-crowned Sparrow depends heavily on the season and age of the bird:

• Breeding Adults: Feature a striking, vibrant yellow patch on the center of the crown, bordered on the sides by thick, deep black stripes. The rest of the head, nape, and breast are a clean, cool gray. The back is warm brown with bold blackish streaks, and the wings feature two white wingbars.
• Non-breeding Adults and Immatures: The head pattern is much more subdued. Regular winter birds show a duller, sometimes pale olive-yellow crown patch, and the black side-stripes are reduced to fine, dark brown streaking or messy spots. Immature birds in their first autumn may show only a very faint wash of yellow on the forehead, or none at all.
• Bill Color: Key to separating this species from others is its solid, dusky gray bill, which helps distinguish it from pink- or yellow-billed congeners.

Similar Species:

• White-crowned Sparrow: Lacks any yellow on the head, features bold black-and-white (or brown-and-tan) stripes, and has a bright pink or yellowish-orange bill.
• White-throated Sparrow: Features a highly contrasting white throat patch and bright yellow lores (the space between the eye and the bill) rather than a yellow crown.

The Golden-crowned Sparrow occupies distinct habitats depending on the time of year:

• Breeding Range: Restricted to the far northwest of North America, including Alaska, Yukon, British Columbia, and southwestern Alberta. They build their nests in alpine and subalpine zones where willow, alder, and dwarf birch thickets patch the tundra mountain slopes.
• Wintering Range: They migrate south along the Pacific Flyway to winter from southern British Columbia down through Washington, Oregon, and throughout California into northern Baja California. Here, they occupy dense shrubby cover, chaparral, oak woodlands, residential gardens, and forest edges.
• Migration: They migrate primarily at night, traveling in loose flocks along coastal lowlands and interior mountain valleys.

• Foraging and Diet: These sparrows feed primarily on the ground. They are famous for their "double-scratch" hop, springing forward and kicking backward with both feet simultaneously to clear away leaf litter and expose food. Their winter diet consists largely of seeds, tender green sprouts, buds, and berries. In the summer, they consume significant amounts of insects to feed their young.
• Sociality: Golden-crowned Sparrows are highly gregarious in winter, forming foraging flocks often mixed with White-crowned Sparrows, Dark-eyed Juncos, and California Towhees. They maintain loose winter hierarchies within their flocks.
• Vocalizations: The song of the Golden-crowned Sparrow is notoriously melancholy and easy to recognize. It consists of three clear, whistled, descending notes in a minor key, often described as sounding like "oh-dear-me" or "three-blind-mice". It is one of the few migratory sparrows that sings regularly throughout the winter season.
• Nesting: The nest is a bulky, open cup of dry grass, twigs, moss, and bark, lined with fine grasses and mammal hair. It is built either on the cold ground hidden beneath a dwarf shrub or placed low in the branches of a stout bush.