Chipping sparrows (Spizella passerina) are among the smaller sparrows, and are very active, bobbing their rufous caps as they forage. They are seed eaters, so I usually see them on the ground and at the bird feeders.

Chipping sparrow, Central Park, April 17, 2021

Chipping sparrow, Central Park, April 17, 2021

Chipping sparrow, Green-Wood Cemetery, April 17, 2022