The range and numbers of this bird are decreasing, probably due to habitat loss of the grasslands that it depends on. However, it has heavily benefited from the
Conservation Reserve Program formed by the
United States Department of Agriculture, which has helped to stabilize its population. Following this, it was downlisted to
Least Concern from
Near Threatened in 2018. The
Texas population was solely known from a brushfield near
Houston and disappeared after devegetation due to industrial development in the 1980s. It was considered a distinct subspecies (
P. h. houstonensis: Arnold, 1983) but is today considered to fall into the range of variation of the nominate subspecies (Browning, 1990). Likewise, the
South Dakotan population formerly known as
P. h. occidentalis has been synonymized with the nominate. The only remaining subspecies generally (but not universally) accepted are the eastern Henslow's sparrow and the western Henslow's sparrow, whose ranges are for the most part separated by the
Appalachian Mountains. ==Diet and behavior==