dusky seaside sparrow
See under seaside sparrow.
Also called dusky sparrow.
a species of sparrow, Ammospiza maritima, existing in two subspecies, one (Cape Sable seaside sparrow) having dark olive-drab plumage with a lighter breast and underbelly, and the other (dusky seaside sparrow) having bold black and white markings on the breast and underbelly: the dusky seaside sparrow is almost extinct.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019