The chestnut-collared longspur (Calcarius ornatus) is a species of bird in the family Calcariidae.

These birds have a short conical bill, a streaked back and a white tail with a dark tip.

In winter, they migrate in flocks to prairies and open fields in the southern United States and Mexico.

Controlled burns may benefit this species as they feed on low-growing plants that are more easily spotted after a fire.

The female lays 4 or 5 eggs in a grass cup nest in a shallow scrape on the ground.