From the Cornell website: "Field Sparrows seek out open habitat with low perches, such as abandoned agricultural fields and pastures, fencerows, road and forest edges, and openings in wooded areas. You may also spot them occasionally in Christmas tree farms, orchards, and nurseries. They’ll breed in fields that were recently burned or cultivated as long as there are some trees or other perches available, but will abandon such settings as thickets of trees grow back. Shy around human habitation, Field Sparrows avoid breeding near where people live. In winter, look for them in settings similar to their summer habitats: abandoned fields and pastures, forest edges, and fencerows. In migration they’ll occasionally turn up in suburban yards."
This one was photographed at Prairie Ridge Ecostation in Raleigh, NC.