| | The Savannah Sparrow has a typically sparrow-like dark-streaked brown back, and whitish underparts with brown or blackish breast and flank streaking. It has a yellowish or whitish crown and eyebrow stripes. The cheeks are brown and the throat white.
The Savannah Sparrow is a very variable species, with numerous subspecies, several of which have been split as separate species at various times. The different forms vary principally in the darkness of the plumage, with Alaskan and interior races the palest, and southwestern coastal forms the darkest; by and large ths agrees with the new species limits. The Savannah Sparrows proper (see below) are very similar and migrant birds can not usually be related to a breeding population with certainty. The resident or partially migratory subspecies are well distinguishable by size and, particularly between groups, coloration. The song is mixture of chirps and trills. The flight call is a thin seep. | |
