vesper sparrow

The vesper sparrow (Pooecetes gramineus) is a common American sparrow known for its white outer tail feathers and its song, which is often heard in the evening. Sparrows, in general, are small, seed-eating birds with conical bills.12

While the term "sparrow" is most strongly associated with the Old World family Passeridae, including the widespread house sparrow, it also applies to many New World birds in the Emberizidae family. The vesper sparrow is one such example, belonging to the Emberizidae family and typically found in grassy fields.2