Harris's Sparrow

Harris's Sparrow is the largest sparrow species in North America, a bulky, handsome bird with a bold black hood and bib covering the crown, face, and throat of breeding adults, sharply set off against a bright pink bill and a plain gray face and nape. The extent of black is variable, being most extensive in older breeding-plumage adults and reduced to a patchier, less complete pattern in immature and non-breeding birds.

The body below the bib is white with variable dark streaking or spotting along the flanks, and the back is streaked brown, giving an overall bold, striking appearance among sparrows.

Key field marks

• Black hood and bib (variable extent) contrasting with a bright pink bill
• Plain gray face and nape framing the black crown/throat
• Large size, noticeably bigger than most other sparrows
• White underparts with variable dark spotting on the flanks

Similar species

• White-crowned Sparrow and White-throated Sparrow both lack the extensive black hood and bib and are smaller-bodied overall.
• No other North American sparrow combines a black hood, pink bill, and this large a body size.

Harris's Sparrow has an unusually restricted breeding range for a North American songbird, nesting only in the low shrub tundra and stunted spruce transition zone of north-central Canada, a habitat type sometimes called taiga-tundra ecotone, making it the only songbird species that breeds exclusively in Canada.

In winter, the species migrates to a fairly narrow band of the south-central Great Plains, chiefly Kansas, Oklahoma, Nebraska, and neighboring states, where it favors brushy fields, woodland edges, and hedgerows, often in mixed flocks with other sparrows.

Harris's Sparrows forage on the ground, often in flocks with other sparrow species during winter, scratching through leaf litter and low vegetation for seeds and insects, and tend to dominate other sparrows at feeding areas due to their larger size.

The song is a series of clear, mournful whistled notes, often on one or two pitches, somewhat similar in quality to the White-throated Sparrow's song but generally simpler; calls include a sharp "chink" note. Diet is seeds and insects, with more insects taken during the breeding season. Nests are built on the ground in low tundra shrub, with typical clutches of three to five eggs; because the breeding range is so remote, the nesting biology of this species was not documented until relatively late compared to most North American birds.