Corn Bunting

The Corn Bunting is the largest and bulkiest of the European buntings, a plain, streaky brown bird lacking the bold plumage patterns of most of its relatives, but distinctive for its heavy build and its unmistakable song delivered from wires and fence posts across open farmland.

Appearance

Sexes look alike — both are streaky, warm brown above and pale, streaked buff below, with a stout, pale conical bill and no strong head pattern. The overall impression is of an oversized, chunky, rather nondescript sparrow-like bird, often looking somewhat lark-like in flight due to its dangling legs.

Key Field Marks

• Large, bulky build, noticeably bigger than other European buntings
• Plain streaky brown plumage, sexes alike, with no obvious head pattern
• Thick, pale conical bill
• Often dangles legs in flight
• Distinctive jangling song from wires and posts

Similar Species

Female Yellowhammer and Reed Bunting are smaller and slimmer with more defined head patterns (pale supercilium, darker crown stripes) and white in the outer tail feathers, which the Corn Bunting lacks. The Corn Bunting's larger size, heavier bill, and plainer face are the best distinguishing features.

Habitat

Corn Buntings are birds of open, largely treeless arable and pastoral farmland, favoring cereal fields, rough grassland, and hedgerow-free or sparsely hedged agricultural landscapes, often in traditional, less intensively farmed areas.

Range and Migration

The species is widespread across much of Europe, North Africa, and western Asia, though it has declined severely — and disappeared entirely from some regions — due to agricultural intensification. Most populations are resident or make only local movements, sometimes gathering into large post-breeding and winter flocks on stubble fields.

Behavior

Males are often polygynous, with a single male sometimes mating with several females within his territory — unusual among European songbirds. Outside the breeding season, Corn Buntings can form large, loose flocks that forage together on stubble and weedy fields.

Voice

The song, delivered from a wire, fence post, or low bush, is a distinctive dry, jangling rattle, often compared to the sound of a bunch of keys being shaken or jangled — quite unlike the songs of other buntings.

Nesting and Breeding

The nest is built on or near the ground, hidden in grass or a low crop, a bulky cup of grass and stems lined with finer material. The female lays 3-5 eggs with dark scrawled markings and incubates them alone for about 12-14 days.