Bachman's sparrows' breeding season typically begins in April and continues through August. The earliest date for Bachman's sparrow eggs in Florida is 14 April and the latest date is 4 August. The earliest Bachman's sparrow nest found during a study in longleaf pine habitat of South Carolina was 10 April, while the latest nest found was early in the incubation stage on 5 August. In a study of Bachman's sparrow reproduction in shortleaf and loblolly pine plantations of Arkansas, egg laying started as early as 17 April and continued until 26 August. However, 85% of clutches were started in May, June, or July.